Comparison results

Hardware Specs
Hardware Specifications
CPU
CPU Model Intel Celeron J3455 Intel Celeron J4025 Intel Celeron J4025 Intel Celeron J4125 Intel Celeron J4125
CPU Architecture 64-bit 64-bit 64-bit 64-bit 64-bit
CPU Frequency 4-core 1.5 (base) / 2.3 (burst) GHz 2-core 2.0 (base) / 2.9 (burst) GHz 2-core 2.0 (base) / 2.9 (burst) GHz 4-core 2.0 (base) / 2.7 (burst) GHz 4-core 2.0 (base) / 2.7 (burst) GHz
Hardware Encryption Engine (AES-NI)
Memory
System Memory 8 GB DDR3L non-ECC SODIMM 2 GB DDR4 non-ECC 2 GB DDR4 non-ECC 2 GB DDR4 non-ECC 4 GB DDR4 non-ECC
Memory Module Pre-installed 8 GB (4 GB x 2)
Total Memory Slots 2 1 1 1 1
Maximum Memory Capacity 6 GB (2 GB + 4 GB) 6 GB (2 GB + 4 GB) 6 GB (2 GB + 4 GB) 8 GB (4 GB + 4 GB)
Notes
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Storage
Drive Bays 5 2 4 2 4
Maximum Drive Bays with Expansion Unit 10 (DX517 x 1) 7 (DX517 x 1) 9 (DX517 x 1)
M.2 Drive Slots 2 (NVMe) 2 (NVMe) 2 (NVMe) 2 (NVMe)
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe SSD
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe SSD
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe SSD
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe SSD
Maximum Internal Raw Capacity 80 TB (16 TB drive x 5) (Capacity may vary by RAID types) 32 TB (16 TB drive x 2) (Capacity may vary by RAID types) 64 TB (16 TB drive x 4) (Capacity may vary by RAID types) 32 TB (16 TB drive x 2) (Capacity may vary by RAID types) 64 TB (16 TB drive x 4) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 160 TB (80 TB + 16 TB drive x 5) (Capacity may vary by RAID types) 112 TB (32 TB + 16 TB drive x 5) (Capacity may vary by RAID types) 144 TB (64 TB + 16 TB drive x 5) (Capacity may vary by RAID types)
Maximum Single Volume Size* 108 TB 108 TB 108 TB 108 TB 108 TB
Hot Swappable Drive
Notes
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum single volume size is not directly related to the maximum raw capacity. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum single volume size is not directly related to the maximum raw capacity. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
External Ports
RJ-45 1GbE LAN Port 2 (with Link Aggregation / Failover support) 2 (with Link Aggregation / Failover support) 2 (with Link Aggregation / Failover support) 2 (with Link Aggregation / Failover support) 2 (with Link Aggregation / Failover support)
USB 3.0 Port 2 2 2 2 2
eSATA Port 1 1 1
USB / SD Copy
File System
Internal Drives
  • Btrfs
  • EXT4
  • Btrfs
  • EXT4
  • Btrfs
  • EXT4
  • Btrfs
  • EXT4
  • Btrfs
  • EXT4
External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
Notes exFAT Access is purchased separately in Package Center. exFAT Access is purchased separately in Package Center. exFAT Access is purchased separately in Package Center. exFAT Access is purchased separately in Package Center. exFAT Access is purchased separately in Package Center.
Appearance
Size (Height x Width x Depth) 166 mm x 230 mm x 223 mm 165 mm x 108 mm x 232.2 mm 166 mm x 199 mm x 223 mm 166 mm x 106 mm x 223 mm 166 mm x 199 mm x 223 mm
Weight 2.54 kg 1.30 kg 2.18 kg 1.51 kg 2.24 kg
Others
System Fan 92 mm x 92 mm x 2 pcs 92 mm x 92 mm x 1 pcs 92 mm x 92 mm x 2 pcs 92 mm x 92 mm x 1 pcs 92 mm x 92 mm x 2 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Brightness Adjustable Front LED Indicators
Power Recovery
Noise Level* 20.8 dB(A) 19.3 dB(A) 19.8 dB(A) 18.4 dB(A) 19.8 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 120 W 60 W 90 W 65 W 100 W
AC Input Power Voltage 100 V to 240 V AC 100 V to 240 V AC 100 V to 240 V AC 100 V to 240 V AC 100 V to 240 V AC
Power Frequency 50/60 Hz, Single Phase 50/60 Hz, Single Phase 50/60 Hz, Single Phase 50/60 Hz, Single Phase 50/60 Hz, Single Phase
Power Consumption* 38.59 W (Access)
13.32 W (HDD Hibernation)
14.69 W (Access)
4.41 W (HDD Hibernation)
28.30 W (Access)
8.45 W (HDD Hibernation)
16.44 W (Access)
6.19 W (HDD Hibernation)
32.17 W (Access)
9.69 W (HDD Hibernation)
British Thermal Unit 131.67 BTU/hr (Access)
45.45 BTU/hr (HDD Hibernation)
50.12 BTU/hr (Access)
15.05 BTU/hr (HDD Hibernation)
96.63 BTU/hr (Access)
72.11 BTU/hr (HDD Hibernation)
56.1 BTU/hr (Access)
21.12 BTU/hr (HDD Hibernation)
109.84 BTU/hr (Access)
33.09 BTU/hr (HDD Hibernation)
Notes
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Operating Temperature 0°C to 40°C (32°F to 104°F) 0°C to 40°C (32°F to 104°F) 0°C to 40°C (32°F to 104°F) 0°C to 40°C (32°F to 104°F) 0°C to 40°C (32°F to 104°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F) -20°C to 60°C (-5°F to 140°F) -20°C to 60°C (-5°F to 140°F) -20°C to 60°C (-5°F to 140°F) -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH 5% to 95% RH 5% to 95% RH 5% to 95% RH 5% to 95% RH
Certification
  • EAC
  • VCCI
  • CCC
  • RCM
  • FCC
  • CE
  • BSMI
  • EAC
  • VCCI
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
  • EAC
  • VCCI
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
  • EAC
  • VCCI
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
  • EAC
  • VCCI
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
Warranty 3 Years 2 Years 3 Years 3 Years 3 Years
Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment RoHS Compliant RoHS Compliant RoHS Compliant RoHS Compliant RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
Optional Accessories
Notes All memory modules will operate at the maximum frequency specified by the CPU manufacturer. All memory modules will operate at the maximum frequency specified by the CPU manufacturer. All memory modules will operate at the maximum frequency specified by the CPU manufacturer. All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
Software Specs
DSM Specifications
Storage Management
Maximum Internal Volume Number 64 64 64 64 64
Maximum iSCSI Target Number 128 128 128 128 128
Maximum iSCSI LUN 256 256 256 256 256
iSCSI LUN Clone/Snapshot, Windows ODX
SSD Read / Write Cache (White Paper)
SSD TRIM
Supported RAID Type
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5 (with Expansion Unit)
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Basic to RAID 1
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
  • Basic to RAID 1
  • Basic to RAID 5 (with Expansion Unit)
  • RAID 1 to RAID 5 (with Expansion Unit)
  • RAID 5 to RAID 6 (with Expansion Unit)
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • RAID 1
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5 (with Expansion Unit)
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Volume Expansion by Adding a HDD
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
  • RAID 6
Synology Hybrid RAID
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
  • Synology Hybrid RAID
  • JBOD (with Expansion Unit)
  • RAID 5 (with Expansion Unit)
  • RAID 6 (with Expansion Unit)
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
  • RAID 6 (with Expansion Unit)
Global Hot Spare Supported RAID Type
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • Synology Hybrid RAID
  • RAID 1 (with Expansion Unit)
  • RAID 5 (with Expansion Unit)
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
File Services
File Protocol CIFS/AFP/NFS/FTP/WebDAV CIFS/AFP/NFS/FTP/WebDAV CIFS/AFP/NFS/FTP/WebDAV CIFS/AFP/NFS/FTP/WebDAV CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections 2,000 500 500 500 1,000
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) 1,500 1,500 1,500 2,000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Account & Shared Folder
Maximum Local User Accounts 2,048 2,048 2,048 2,048 2,048
Maximum Local Groups 256 256 256 256 256
Maximum Shared Folder 512 256 512 512 512
Maximum Shared Folder Sync Tasks 32 8 8 8 16
High Availability
Synology High Availability
Log Center
Syslog Events per Second 800 400 400 800 800
Virtualization
VMware vSphere 6 with VAAI
Windows Server 2016
Citrix Ready
OpenStack
General Specifications
Networking Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
Supported Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
Add-on Packages view the complete package list
Antivirus by McAfee (Trial)
Central Management System
Synology Chat
Maximum Users 1,500 1,000 1,000 1,500 1,500
Notes
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
Recommended Number of Hosted Files 500,000
Recommended Number of Concurrent Sync Clients 450 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes
  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time.
  • The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Cloud Station Server service. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.
Document Viewer
Download Station
Maximum Concurrent Download Tasks 80 80 80 80 80
exFAT Access (Optional)
Synology MailPlus / MailPlus Server
Free Email Accounts 5 (Licenses required for additional accounts) 5 (Licenses required for additional accounts) 5 (Licenses required for additional accounts) 5 (Licenses required for additional accounts) 5 (Licenses required for additional accounts)
Maximum Number of Concurrent Users 100 50 50 100 100
Maximum Server Performance 1,052,000 emails per day, approx. 32GB 936,000 emails per day, approx. 28GB 936,000 emails per day, approx. 28GB 1,224,000 emails per day, approx. 37GB 1,224,000 emails per day, approx. 37GB
Notes
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
Media Server
DLNA Compliance
Moments
Facial Recognition
Subject Recognition
Auto Color & Rotate
Moments Select
Snapshot Replication
Maximum Snapshots per Shared Folder 1,024 1,024 1,024 1,024 1,024
Maximum of System Snapshots 65,536 65,536 65,536 65,536 65,536
Surveillance Station
Maximum IP cam (Licenses required) 40 (including 2 Free License) (See All Supported IP Cameras) 25 (including 2 Free License) (See All Supported IP Cameras) 25 (including 2 Free License) (See All Supported IP Cameras) 40 (including 2 Free License) (See All Supported IP Cameras) 40 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264) 1200 FPS @ 720p (1280x720)
840 FPS @ 1080p (1920x1080)
550 FPS @ 3M (2048x1536)
300 FPS @ 5M (2591x1944)
180 FPS @ 4K (3840x2160)
750 FPS @ 720p (1280x720)
700 FPS @ 1080p (1920x1080)
350 FPS @ 3M (2048x1536)
240 FPS @ 5M (2591x1944)
120 FPS @ 4K (3840x2160)
750 FPS @ 720p (1280x720)
700 FPS @ 1080p (1920x1080)
350 FPS @ 3M (2048x1536)
240 FPS @ 5M (2591x1944)
120 FPS @ 4K (3840x2160)
1200 FPS @ 720p (1280x720)
800 FPS @ 1080p (1920x1080)
350 FPS @ 3M (2048x1536)
280 FPS @ 5M (2591x1944)
170 FPS @ 4K (3840x2160)
1200 FPS @ 720p (1280x720)
1050 FPS @ 1080p (1920x1080)
600 FPS @ 3M (2048x1536)
360 FPS @ 5M (2591x1944)
200 FPS @ 4K (3840x2160)
Total FPS (H.265) 1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920x1080)
900 FPS @ 3M (2048x1536)
550 FPS @ 5M (2591x1944)
300 FPS @ 4K (3840x2160)
750 FPS @ 720p (1280x720)
750 FPS @ 1080p (1920x1080)
500 FPS @ 3M (2048x1536)
250 FPS @ 5M (2591x1944)
200 FPS @ 4K (3840x2160)
750 FPS @ 720p (1280x720)
750 FPS @ 1080p (1920x1080)
500 FPS @ 3M (2048x1536)
250 FPS @ 5M (2591x1944)
200 FPS @ 4K (3840x2160)
1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920x1080)
600 FPS @ 3M (2048x1536)
480 FPS @ 5M (2591x1944)
200 FPS @ 4K (3840x2160)
1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920x1080)
1000 FPS @ 3M (2048x1536)
600 FPS @ 5M (2591x1944)
300 FPS @ 4K (3840x2160)
Total FPS (MJPEG) 720 FPS @ 720p (1280x720)
500 FPS @ 1080p (1920x1080)
330 FPS @ 3M (2048x1536)
200 FPS @ 5M (2591x1944)
450 FPS @ 720p (1280x720)
250 FPS @ 1080p (1920x1080)
160 FPS @ 3M (2048x1536)
130 FPS @ 5M (2591x1944)
450 FPS @ 720p (1280x720)
250 FPS @ 1080p (1920x1080)
160 FPS @ 3M (2048x1536)
130 FPS @ 5M (2591x1944)
450 FPS @ 720p (1280x720)
250 FPS @ 1080p (1920x1080)
200 FPS @ 3M (2048x1536)
100 FPS @ 5M (2591x1944)
680 FPS @ 720p (1280x720)
400 FPS @ 1080p (1920x1080)
300 FPS @ 3M (2048x1536)
200 FPS @ 5M (2591x1944)
Notes
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
Synology Drive
Recommended Number of Hosted Files 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Recommended Number of Concurrent Sync Clients 450 (the number of connections that can be maintained when the recommended number of hosted files was reached) 350 (the number of connections that can be maintained when the recommended number of hosted files was reached) 350 (the number of connections that can be maintained when the recommended number of hosted files was reached) 350 (the number of connections that can be maintained when the recommended number of hosted files was reached) 600 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Maximum Users 1,800 600 600 3,400 3,400
Notes
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Video Station
Virtual Machine Manager
Recommended Virtual Machine Instances 4 (Learn more) 2 (Learn more) 2 (Learn more) 2 (Learn more) 4 (Learn more)
Recommended Virtual DSM Number (Licenses required) 4 (including 1 Free License) 2 (including 1 Free License) 2 (including 1 Free License) 2 (including 1 Free License) 4 (including 1 Free License)
Notes The specifications vary depending on system configuration and memory size. The specifications vary depending on system configuration and memory size. The specifications vary depending on system configuration and memory size. The specifications vary depending on system configuration and memory size. The specifications vary depending on system configuration and memory size.
VPN Server
Maximum Connections 30 30 30 30 30
Hardware Specs
Hardware Specifications
CPU
CPU Model
DS1019+ Intel Celeron J3455
DS220+ Intel Celeron J4025
DS420+ Intel Celeron J4025
DS720+ Intel Celeron J4125
DS920+ Intel Celeron J4125
CPU Architecture
DS1019+ 64-bit
DS220+ 64-bit
DS420+ 64-bit
DS720+ 64-bit
DS920+ 64-bit
CPU Frequency
DS1019+ 4-core 1.5 (base) / 2.3 (burst) GHz
DS220+ 2-core 2.0 (base) / 2.9 (burst) GHz
DS420+ 2-core 2.0 (base) / 2.9 (burst) GHz
DS720+ 4-core 2.0 (base) / 2.7 (burst) GHz
DS920+ 4-core 2.0 (base) / 2.7 (burst) GHz
Hardware Encryption Engine (AES-NI)
DS1019+
DS220+
DS420+
DS720+
DS920+
Memory
System Memory
DS1019+ 8 GB DDR3L non-ECC SODIMM
DS220+ 2 GB DDR4 non-ECC
DS420+ 2 GB DDR4 non-ECC
DS720+ 2 GB DDR4 non-ECC
DS920+ 4 GB DDR4 non-ECC
Memory Module Pre-installed
DS1019+ 8 GB (4 GB x 2)
DS220+
DS420+
DS720+
DS920+
Total Memory Slots
DS1019+ 2
DS220+ 1
DS420+ 1
DS720+ 1
DS920+ 1
Maximum Memory Capacity
DS1019+
DS220+ 6 GB (2 GB + 4 GB)
DS420+ 6 GB (2 GB + 4 GB)
DS720+ 6 GB (2 GB + 4 GB)
DS920+ 8 GB (4 GB + 4 GB)
Notes
DS1019+
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
DS220+
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
DS420+
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
DS720+
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
DS920+
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Storage
Drive Bays
DS1019+ 5
DS220+ 2
DS420+ 4
DS720+ 2
DS920+ 4
Maximum Drive Bays with Expansion Unit
DS1019+ 10 (DX517 x 1)
DS220+
DS420+
DS720+ 7 (DX517 x 1)
DS920+ 9 (DX517 x 1)
M.2 Drive Slots
DS1019+ 2 (NVMe)
DS220+
DS420+ 2 (NVMe)
DS720+ 2 (NVMe)
DS920+ 2 (NVMe)
Compatible Drive Type* (See all supported drives)
DS1019+
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe SSD
DS220+
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
DS420+
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe SSD
DS720+
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe SSD
DS920+
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe SSD
Maximum Internal Raw Capacity
DS1019+ 80 TB (16 TB drive x 5) (Capacity may vary by RAID types)
DS220+ 32 TB (16 TB drive x 2) (Capacity may vary by RAID types)
DS420+ 64 TB (16 TB drive x 4) (Capacity may vary by RAID types)
DS720+ 32 TB (16 TB drive x 2) (Capacity may vary by RAID types)
DS920+ 64 TB (16 TB drive x 4) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units
DS1019+ 160 TB (80 TB + 16 TB drive x 5) (Capacity may vary by RAID types)
DS220+
DS420+
DS720+ 112 TB (32 TB + 16 TB drive x 5) (Capacity may vary by RAID types)
DS920+ 144 TB (64 TB + 16 TB drive x 5) (Capacity may vary by RAID types)
Maximum Single Volume Size*
DS1019+ 108 TB
DS220+ 108 TB
DS420+ 108 TB
DS720+ 108 TB
DS920+ 108 TB
Hot Swappable Drive
DS1019+
DS220+
DS420+
DS720+
DS920+
Notes
DS1019+
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
DS220+
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum single volume size is not directly related to the maximum raw capacity. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
DS420+
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum single volume size is not directly related to the maximum raw capacity. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
DS720+
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
DS920+
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
External Ports
RJ-45 1GbE LAN Port
DS1019+ 2 (with Link Aggregation / Failover support)
DS220+ 2 (with Link Aggregation / Failover support)
DS420+ 2 (with Link Aggregation / Failover support)
DS720+ 2 (with Link Aggregation / Failover support)
DS920+ 2 (with Link Aggregation / Failover support)
USB 3.0 Port
DS1019+ 2
DS220+ 2
DS420+ 2
DS720+ 2
DS920+ 2
eSATA Port
DS1019+ 1
DS220+
DS420+
DS720+ 1
DS920+ 1
USB / SD Copy
DS1019+
DS220+
DS420+
DS720+
DS920+
File System
Internal Drives
DS1019+
  • Btrfs
  • EXT4
DS220+
  • Btrfs
  • EXT4
DS420+
  • Btrfs
  • EXT4
DS720+
  • Btrfs
  • EXT4
DS920+
  • Btrfs
  • EXT4
External Drives
DS1019+
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
DS220+
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
DS420+
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
DS720+
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
DS920+
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
Notes
DS1019+ exFAT Access is purchased separately in Package Center.
DS220+ exFAT Access is purchased separately in Package Center.
DS420+ exFAT Access is purchased separately in Package Center.
DS720+ exFAT Access is purchased separately in Package Center.
DS920+ exFAT Access is purchased separately in Package Center.
Appearance
Size (Height x Width x Depth)
DS1019+ 166 mm x 230 mm x 223 mm
DS220+ 165 mm x 108 mm x 232.2 mm
DS420+ 166 mm x 199 mm x 223 mm
DS720+ 166 mm x 106 mm x 223 mm
DS920+ 166 mm x 199 mm x 223 mm
Weight
DS1019+ 2.54 kg
DS220+ 1.30 kg
DS420+ 2.18 kg
DS720+ 1.51 kg
DS920+ 2.24 kg
Others
System Fan
DS1019+ 92 mm x 92 mm x 2 pcs
DS220+ 92 mm x 92 mm x 1 pcs
DS420+ 92 mm x 92 mm x 2 pcs
DS720+ 92 mm x 92 mm x 1 pcs
DS920+ 92 mm x 92 mm x 2 pcs
Fan Speed Mode
DS1019+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
DS220+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
DS420+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
DS720+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
DS920+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Brightness Adjustable Front LED Indicators
DS1019+
DS220+
DS420+
DS720+
DS920+
Power Recovery
DS1019+
DS220+
DS420+
DS720+
DS920+
Noise Level*
DS1019+ 20.8 dB(A)
DS220+ 19.3 dB(A)
DS420+ 19.8 dB(A)
DS720+ 18.4 dB(A)
DS920+ 19.8 dB(A)
Scheduled Power On / Off
DS1019+
DS220+
DS420+
DS720+
DS920+
Wake on LAN / WAN
DS1019+
DS220+
DS420+
DS720+
DS920+
Power Supply Unit / Adapter
DS1019+ 120 W
DS220+ 60 W
DS420+ 90 W
DS720+ 65 W
DS920+ 100 W
AC Input Power Voltage
DS1019+ 100 V to 240 V AC
DS220+ 100 V to 240 V AC
DS420+ 100 V to 240 V AC
DS720+ 100 V to 240 V AC
DS920+ 100 V to 240 V AC
Power Frequency
DS1019+ 50/60 Hz, Single Phase
DS220+ 50/60 Hz, Single Phase
DS420+ 50/60 Hz, Single Phase
DS720+ 50/60 Hz, Single Phase
DS920+ 50/60 Hz, Single Phase
Power Consumption*
DS1019+ 38.59 W (Access)
13.32 W (HDD Hibernation)
DS220+ 14.69 W (Access)
4.41 W (HDD Hibernation)
DS420+ 28.30 W (Access)
8.45 W (HDD Hibernation)
DS720+ 16.44 W (Access)
6.19 W (HDD Hibernation)
DS920+ 32.17 W (Access)
9.69 W (HDD Hibernation)
British Thermal Unit
DS1019+ 131.67 BTU/hr (Access)
45.45 BTU/hr (HDD Hibernation)
DS220+ 50.12 BTU/hr (Access)
15.05 BTU/hr (HDD Hibernation)
DS420+ 96.63 BTU/hr (Access)
72.11 BTU/hr (HDD Hibernation)
DS720+ 56.1 BTU/hr (Access)
21.12 BTU/hr (HDD Hibernation)
DS920+ 109.84 BTU/hr (Access)
33.09 BTU/hr (HDD Hibernation)
Notes
DS1019+
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DS220+
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DS420+
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DS720+
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DS920+
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Operating Temperature
DS1019+ 0°C to 40°C (32°F to 104°F)
DS220+ 0°C to 40°C (32°F to 104°F)
DS420+ 0°C to 40°C (32°F to 104°F)
DS720+ 0°C to 40°C (32°F to 104°F)
DS920+ 0°C to 40°C (32°F to 104°F)
Storage Temperature
DS1019+ -20°C to 60°C (-5°F to 140°F)
DS220+ -20°C to 60°C (-5°F to 140°F)
DS420+ -20°C to 60°C (-5°F to 140°F)
DS720+ -20°C to 60°C (-5°F to 140°F)
DS920+ -20°C to 60°C (-5°F to 140°F)
Relative Humidity
DS1019+ 5% to 95% RH
DS220+ 5% to 95% RH
DS420+ 5% to 95% RH
DS720+ 5% to 95% RH
DS920+ 5% to 95% RH
Certification
DS1019+
  • EAC
  • VCCI
  • CCC
  • RCM
  • FCC
  • CE
  • BSMI
DS220+
  • EAC
  • VCCI
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
DS420+
  • EAC
  • VCCI
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
DS720+
  • EAC
  • VCCI
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
DS920+
  • EAC
  • VCCI
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
Warranty
DS1019+ 3 Years
DS220+ 2 Years
DS420+ 3 Years
DS720+ 3 Years
DS920+ 3 Years
Notes
DS1019+ The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
DS220+ The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
DS420+ The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
DS720+ The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
DS920+ The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment
DS1019+ RoHS Compliant
DS220+ RoHS Compliant
DS420+ RoHS Compliant
DS720+ RoHS Compliant
DS920+ RoHS Compliant
Packaging Content
DS1019+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
DS220+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
DS420+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
DS720+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
DS920+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
Optional Accessories
DS1019+
DS220+
DS420+
DS720+
DS920+
Notes
DS1019+
DS220+ All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
DS420+ All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
DS720+ All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
DS920+ All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
Software Specs
DSM Specifications
Storage Management
Maximum Internal Volume Number
DS1019+ 64
DS220+ 64
DS420+ 64
DS720+ 64
DS920+ 64
Maximum iSCSI Target Number
DS1019+ 128
DS220+ 128
DS420+ 128
DS720+ 128
DS920+ 128
Maximum iSCSI LUN
DS1019+ 256
DS220+ 256
DS420+ 256
DS720+ 256
DS920+ 256
iSCSI LUN Clone/Snapshot, Windows ODX
DS1019+
DS220+
DS420+
DS720+
DS920+
SSD Read / Write Cache (White Paper)
DS1019+
DS220+
DS420+
DS720+
DS920+
SSD TRIM
DS1019+
DS220+
DS420+
DS720+
DS920+
Supported RAID Type
DS1019+
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
DS220+
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
DS420+
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
DS720+
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5 (with Expansion Unit)
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
DS920+
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
DS1019+
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
DS220+ Basic to RAID 1
DS420+
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
DS720+
  • Basic to RAID 1
  • Basic to RAID 5 (with Expansion Unit)
  • RAID 1 to RAID 5 (with Expansion Unit)
  • RAID 5 to RAID 6 (with Expansion Unit)
DS920+
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
DS1019+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
DS220+
  • Synology Hybrid RAID
  • RAID 1
DS420+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
DS720+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5 (with Expansion Unit)
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
DS920+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Volume Expansion by Adding a HDD
DS1019+
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
  • RAID 6
DS220+ Synology Hybrid RAID
DS420+
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
DS720+
  • Synology Hybrid RAID
  • JBOD (with Expansion Unit)
  • RAID 5 (with Expansion Unit)
  • RAID 6 (with Expansion Unit)
DS920+
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
  • RAID 6 (with Expansion Unit)
Global Hot Spare Supported RAID Type
DS1019+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
DS220+
DS420+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
DS720+
  • Synology Hybrid RAID
  • RAID 1 (with Expansion Unit)
  • RAID 5 (with Expansion Unit)
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
DS920+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
File Services
File Protocol
DS1019+ CIFS/AFP/NFS/FTP/WebDAV
DS220+ CIFS/AFP/NFS/FTP/WebDAV
DS420+ CIFS/AFP/NFS/FTP/WebDAV
DS720+ CIFS/AFP/NFS/FTP/WebDAV
DS920+ CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections
DS1019+ 2,000
DS220+ 500
DS420+ 500
DS720+ 500
DS920+ 1,000
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion)
DS1019+
DS220+ 1,500
DS420+ 1,500
DS720+ 1,500
DS920+ 2,000
Windows Access Control List (ACL) Integration
DS1019+
DS220+
DS420+
DS720+
DS920+
NFS Kerberos Authentication
DS1019+
DS220+
DS420+
DS720+
DS920+
Account & Shared Folder
Maximum Local User Accounts
DS1019+ 2,048
DS220+ 2,048
DS420+ 2,048
DS720+ 2,048
DS920+ 2,048
Maximum Local Groups
DS1019+ 256
DS220+ 256
DS420+ 256
DS720+ 256
DS920+ 256
Maximum Shared Folder
DS1019+ 512
DS220+ 256
DS420+ 512
DS720+ 512
DS920+ 512
Maximum Shared Folder Sync Tasks
DS1019+ 32
DS220+ 8
DS420+ 8
DS720+ 8
DS920+ 16
High Availability
Synology High Availability
DS1019+
DS220+
DS420+
DS720+
DS920+
Log Center
DS1019+
DS220+
DS420+
DS720+
DS920+
Syslog Events per Second
DS1019+ 800
DS220+ 400
DS420+ 400
DS720+ 800
DS920+ 800
Virtualization
VMware vSphere 6 with VAAI
DS1019+
DS220+
DS420+
DS720+
DS920+
Windows Server 2016
DS1019+
DS220+
DS420+
DS720+
DS920+
Citrix Ready
DS1019+
DS220+
DS420+
DS720+
DS920+
OpenStack
DS1019+
DS220+
DS420+
DS720+
DS920+
General Specifications
Networking Protocols
DS1019+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
DS220+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
DS420+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
DS720+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
DS920+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
DS1019+
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
DS220+
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
DS420+
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
DS720+
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
DS920+
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
Supported Language
DS1019+ English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
DS220+ English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
DS420+ English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
DS720+ English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
DS920+ English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
Antivirus by McAfee (Trial)
DS1019+
DS220+
DS420+
DS720+
DS920+
Central Management System
DS1019+
DS220+
DS420+
DS720+
DS920+
Synology Chat
DS1019+
DS220+
DS420+
DS720+
DS920+
Maximum Users
DS1019+ 1,500
DS220+ 1,000
DS420+ 1,000
DS720+ 1,500
DS920+ 1,500
Notes
DS1019+
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
DS220+
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
DS420+
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
DS720+
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
DS920+
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
DS1019+
DS220+
DS420+
DS720+
DS920+
Recommended Number of Hosted Files
DS1019+ 500,000
DS220+
DS420+
DS720+
DS920+
Recommended Number of Concurrent Sync Clients
DS1019+ 450 (the number of connections that can be maintained when the recommended number of hosted files was reached)
DS220+
DS420+
DS720+
DS920+
Notes
DS1019+
  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time.
  • The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Cloud Station Server service. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.
DS220+
DS420+
DS720+
DS920+
Document Viewer
DS1019+
DS220+
DS420+
DS720+
DS920+
Download Station
DS1019+
DS220+
DS420+
DS720+
DS920+
Maximum Concurrent Download Tasks
DS1019+ 80
DS220+ 80
DS420+ 80
DS720+ 80
DS920+ 80
exFAT Access (Optional)
DS1019+
DS220+
DS420+
DS720+
DS920+
Synology MailPlus / MailPlus Server
DS1019+
DS220+
DS420+
DS720+
DS920+
Free Email Accounts
Maximum Number of Concurrent Users
DS1019+ 100
DS220+ 50
DS420+ 50
DS720+ 100
DS920+ 100
Maximum Server Performance
DS1019+ 1,052,000 emails per day, approx. 32GB
DS220+ 936,000 emails per day, approx. 28GB
DS420+ 936,000 emails per day, approx. 28GB
DS720+ 1,224,000 emails per day, approx. 37GB
DS920+ 1,224,000 emails per day, approx. 37GB
Notes
DS1019+
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
DS220+
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
DS420+
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
DS720+
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
DS920+
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
Media Server
DS1019+
DS220+
DS420+
DS720+
DS920+
DLNA Compliance
DS1019+
DS220+
DS420+
DS720+
DS920+
Moments
DS1019+
DS220+
DS420+
DS720+
DS920+
Facial Recognition
DS1019+
DS220+
DS420+
DS720+
DS920+
Subject Recognition
DS1019+
DS220+
DS420+
DS720+
DS920+
Auto Color & Rotate
DS1019+
DS220+
DS420+
DS720+
DS920+
Moments Select
DS1019+
DS220+
DS420+
DS720+
DS920+
Snapshot Replication
DS1019+
DS220+
DS420+
DS720+
DS920+
Maximum Snapshots per Shared Folder
DS1019+ 1,024
DS220+ 1,024
DS420+ 1,024
DS720+ 1,024
DS920+ 1,024
Maximum of System Snapshots
DS1019+ 65,536
DS220+ 65,536
DS420+ 65,536
DS720+ 65,536
DS920+ 65,536
Surveillance Station
DS1019+
DS220+
DS420+
DS720+
DS920+
Maximum IP cam (Licenses required)
DS1019+ 40 (including 2 Free License) (See All Supported IP Cameras)
DS220+ 25 (including 2 Free License) (See All Supported IP Cameras)
DS420+ 25 (including 2 Free License) (See All Supported IP Cameras)
DS720+ 40 (including 2 Free License) (See All Supported IP Cameras)
DS920+ 40 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)
DS1019+ 1200 FPS @ 720p (1280x720)
840 FPS @ 1080p (1920x1080)
550 FPS @ 3M (2048x1536)
300 FPS @ 5M (2591x1944)
180 FPS @ 4K (3840x2160)
DS220+ 750 FPS @ 720p (1280x720)
700 FPS @ 1080p (1920x1080)
350 FPS @ 3M (2048x1536)
240 FPS @ 5M (2591x1944)
120 FPS @ 4K (3840x2160)
DS420+ 750 FPS @ 720p (1280x720)
700 FPS @ 1080p (1920x1080)
350 FPS @ 3M (2048x1536)
240 FPS @ 5M (2591x1944)
120 FPS @ 4K (3840x2160)
DS720+ 1200 FPS @ 720p (1280x720)
800 FPS @ 1080p (1920x1080)
350 FPS @ 3M (2048x1536)
280 FPS @ 5M (2591x1944)
170 FPS @ 4K (3840x2160)
DS920+ 1200 FPS @ 720p (1280x720)
1050 FPS @ 1080p (1920x1080)
600 FPS @ 3M (2048x1536)
360 FPS @ 5M (2591x1944)
200 FPS @ 4K (3840x2160)
Total FPS (H.265)
DS1019+ 1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920x1080)
900 FPS @ 3M (2048x1536)
550 FPS @ 5M (2591x1944)
300 FPS @ 4K (3840x2160)
DS220+ 750 FPS @ 720p (1280x720)
750 FPS @ 1080p (1920x1080)
500 FPS @ 3M (2048x1536)
250 FPS @ 5M (2591x1944)
200 FPS @ 4K (3840x2160)
DS420+ 750 FPS @ 720p (1280x720)
750 FPS @ 1080p (1920x1080)
500 FPS @ 3M (2048x1536)
250 FPS @ 5M (2591x1944)
200 FPS @ 4K (3840x2160)
DS720+ 1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920x1080)
600 FPS @ 3M (2048x1536)
480 FPS @ 5M (2591x1944)
200 FPS @ 4K (3840x2160)
DS920+ 1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920x1080)
1000 FPS @ 3M (2048x1536)
600 FPS @ 5M (2591x1944)
300 FPS @ 4K (3840x2160)
Total FPS (MJPEG)
DS1019+ 720 FPS @ 720p (1280x720)
500 FPS @ 1080p (1920x1080)
330 FPS @ 3M (2048x1536)
200 FPS @ 5M (2591x1944)
DS220+ 450 FPS @ 720p (1280x720)
250 FPS @ 1080p (1920x1080)
160 FPS @ 3M (2048x1536)
130 FPS @ 5M (2591x1944)
DS420+ 450 FPS @ 720p (1280x720)
250 FPS @ 1080p (1920x1080)
160 FPS @ 3M (2048x1536)
130 FPS @ 5M (2591x1944)
DS720+ 450 FPS @ 720p (1280x720)
250 FPS @ 1080p (1920x1080)
200 FPS @ 3M (2048x1536)
100 FPS @ 5M (2591x1944)
DS920+ 680 FPS @ 720p (1280x720)
400 FPS @ 1080p (1920x1080)
300 FPS @ 3M (2048x1536)
200 FPS @ 5M (2591x1944)
Notes
DS1019+
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
DS220+
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
DS420+
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
DS720+
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
DS920+
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
Synology Drive
DS1019+
DS220+
DS420+
DS720+
DS920+
Recommended Number of Hosted Files
DS1019+ 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
DS220+ 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
DS420+ 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
DS720+ 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
DS920+ 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Recommended Number of Concurrent Sync Clients
DS1019+ 450 (the number of connections that can be maintained when the recommended number of hosted files was reached)
DS220+ 350 (the number of connections that can be maintained when the recommended number of hosted files was reached)
DS420+ 350 (the number of connections that can be maintained when the recommended number of hosted files was reached)
DS720+ 350 (the number of connections that can be maintained when the recommended number of hosted files was reached)
DS920+ 600 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes
DS1019+
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
DS220+
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
DS420+
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
DS720+
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
DS920+
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
DS1019+
DS220+
DS420+
DS720+
DS920+
Maximum Users
DS1019+ 1,800
DS220+ 600
DS420+ 600
DS720+ 3,400
DS920+ 3,400
Notes
DS1019+
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
DS220+
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
DS420+
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
DS720+
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
DS920+
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Video Station
DS1019+
DS220+
DS420+
DS720+
DS920+
Virtual Machine Manager
DS1019+
DS220+
DS420+
DS720+
DS920+
Recommended Virtual Machine Instances
DS1019+ 4 (Learn more)
DS220+ 2 (Learn more)
DS420+ 2 (Learn more)
DS720+ 2 (Learn more)
DS920+ 4 (Learn more)
Recommended Virtual DSM Number (Licenses required)
DS1019+ 4 (including 1 Free License)
DS220+ 2 (including 1 Free License)
DS420+ 2 (including 1 Free License)
DS720+ 2 (including 1 Free License)
DS920+ 4 (including 1 Free License)
Notes
DS1019+ The specifications vary depending on system configuration and memory size.
DS220+ The specifications vary depending on system configuration and memory size.
DS420+ The specifications vary depending on system configuration and memory size.
DS720+ The specifications vary depending on system configuration and memory size.
DS920+ The specifications vary depending on system configuration and memory size.
VPN Server
DS1019+
DS220+
DS420+
DS720+
DS920+
Maximum Connections
DS1019+ 30
DS220+ 30
DS420+ 30
DS720+ 30
DS920+ 30