1. products list

Comparison results

DS223j DS224+
Hardware Specs
Hardware Specifications
CPU
CPU Model Realtek RTD1619B Intel Celeron J4125
CPU Quantity 1 1
CPU Core 4 4
CPU Architecture 64-bit 64-bit
CPU Frequency 1.7 GHz 2.0 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine
Memory
System Memory 1 GB DDR4 non-ECC 2 GB DDR4 non-ECC
Total Memory Slots 1
Maximum Memory Capacity 6 GB (2 GB + 4 GB)
Notes 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.
  • 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.
Storage
Drive Bays 2 2
Drive Type (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA SSD (with optional 2.5" Disk Holder)
  • 3.5" SATA HDD
  • 2.5" SATA SSD
Hot Swappable Drive*
External Ports
RJ-45 1GbE LAN Port 1 2
USB 3.2 Gen 1 Port 2 2
USB Copy
Notes This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes. This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
Appearance
Size (Height x Width x Depth) 165 mm x 100 mm x 225.5 mm 165 mm x 108 mm x 232.2 mm
Weight 0.88 kg 1.30 kg
Others
System Fan 92 mm x 92 mm x 1 pcs 92 mm x 92 mm x 1 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Low-power Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Brightness Adjustable Front LED Indicators
Power Recovery
Noise Level* 18.2 dB(A) 22 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 60 watts 60 watts
AC Input Power Voltage 100V to 240V AC 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase 50/60 Hz, Single Phase
Power Consumption* 16.31 watts (Access)
4 watts (HDD Hibernation)		 14.69 watts (Access)
4.41 watts (HDD Hibernation)
British Thermal Unit 55.62 BTU/hr (Access)
13.64 BTU/hr (HDD Hibernation)		 50.09 BTU/hr (Access)
15.04 BTU/hr (HDD Hibernation)
Notes
  • For more information on how power consumption is measured, refer to this article.
  • 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%
  • For more information on how power consumption is measured, refer to this article.
  • Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. 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)
Storage Temperature -20°C to 60°C (-5°F to 140°F) -20°C to 60°C (-5°F to 140°F)
Operating Humidity 8% to 80% RH 8% to 80% RH
Storage Humidity 5% to 95% RH 5% to 95% RH
Certification
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
  • BIS
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • CCC
  • KC
  • BIS
Warranty 2-year hardware warranty, extendable to 4 years with Extended Warranty Plus 2-year hardware warranty, extendable to 4 years with Extended Warranty Plus
Notes
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa, and Oceania. For exact availability information please visit their respective websites.
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa, and Oceania. For exact availability information please visit their respective websites.
Environment 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 1
  • 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.
Software Specs
DSM Specifications
Storage Management
Maximum Single Volume Size 108 TB 108 TB
Maximum Internal Volume Number 64 64
SSD TRIM
Supported RAID Type
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
RAID Migration
  • Basic to RAID 1
  • Basic to RAID 1
Volume Expansion with Larger HDDs
  • Synology Hybrid RAID
  • RAID 1
  • Synology Hybrid RAID
  • RAID 1
Notes
  • Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
File System
Internal Drives
  • Btrfs
  • ext4
  • Btrfs
  • ext4
External Drives
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
Notes Btrfs file system is available from DSM 7.2-64570.
File Services
File Protocol
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
Maximum Number of SMB Connections (FSCT-Based) 5 5
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Notes
  • Connection value of this model is tested with Synology SATA HDD fully populated and all onboard network ports
  • SMB performance was evaluated using Microsoft File Server Capacity Tool (FSCT) version 1.3, with the following configuration:
    • Test workload: HomeFolder scenario provided by the FSCT tool
    • Test duration: 600 seconds
    • Domain controller & FSCT controller: Windows Server 2022
    • FSCT clients: 8 × Windows 10 machines
    • SMB feature: Directory leasing enabled
  • Connection value of this model is tested with Synology SATA HDD fully populated and all onboard network ports
  • Models with expandable memory are tested with the maximum supported quantity installed.
  • SMB performance was evaluated using Microsoft File Server Capacity Tool (FSCT) version 1.3, with the following configuration:
    • Test workload: HomeFolder scenario provided by the FSCT tool
    • Test duration: 600 seconds
    • Domain controller & FSCT controller: Windows Server 2022
    • FSCT clients: 8 × Windows 10 machines
    • SMB feature: Directory leasing enabled
Account & Shared Folder
Maximum Local User Accounts 256 512
Maximum Local Groups 64 128
Maximum Shared Folder 64 128
Maximum Shared Folder Sync Tasks 2 4
Hybrid Share
Maximum Hybrid Share Folders 10
Hyper Backup
Folder and Package Backup
Entire System Backup
Notes Full-system backup requires DSM 7.2 or later.
High Availability
Synology High Availability
Log Center
Syslog Events per Second 200 800
General Specifications
Supported 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
Supported Browsers
  • Chrome
  • Firefox
  • Edge
  • Safari
  • Chrome
  • Firefox
  • Edge
  • Safari
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
Notes For an updated list of supported browser versions, check the DSM Technical Specifications. For an updated list of supported browser versions, check the DSM Technical Specifications.
Add-on Packages view the complete package list
Central Management System
Synology Chat
Maximum Number of Users 100
Notes
  • Measured with simulated users, each with an average record of 20,000 messages, emojis, or stickers. The required server response time is below ten seconds.
  • Models with expandable memory are tested with the maximum supported quantity installed.
Download Station
Maximum Concurrent Download Tasks 80 80
SAN Manager
Maximum iSCSI Target Number 2 2
Maximum LUN 2 2
LUN Clone/Snapshot, Windows ODX
Synology MailPlus / MailPlus Server
Free Email Accounts 5 (Additional accounts require purchase of licenses)
Maximum Number of Users 20
Notes
  • The suggested maximum number of users is based on the following workload: 20% of users with a 20,000 item mailbox randomly performing actions and receiving 240 emails per day, and 80% of users receiving 20 emails per day. Learn more
  • Models with SSD support are tested with a single SSD volume.
  • Models with expandable memory are tested with the maximum supported quantity installed. Learn more about memory requirements.
  • Operating in high-availability mode will incur additional overhead.
  • Features enabled during evaluation: anti-spam, anti-virus, DNSBL, greylist, content scanning, and full-text search (English).
Media Server
DLNA Compliance
Synology Photos
Facial Recognition
Object Recognition
Notes Object recognition requires an upgrade of memory capacity to a minimum of 4 GB.
Snapshot Replication
Maximum Snapshots per Shared Folder 128 128
Maximum of System Snapshots 256 256
Notes Snapshot Replication is available from DSM 7.2-64570.
Surveillance Station
Default Licenses 2 (Additional cameras require purchase of licenses) 2 (Additional cameras require purchase of licenses)
Suggested Maximum IP Cameras and Total FPS (H.264)
  • 1080p: 12 channels, 360 FPS
  • 3M: 12 channels, 300 FPS
  • 5M: 12 channels, 150 FPS
  • 4K: 11 channels, 110 FPS
  • 1080p: 25 channels, 750 FPS
  • 3M: 25 channels, 350 FPS
  • 5M: 25 channels, 280 FPS
  • 4K: 17 channels, 170 FPS
Suggested Maximum IP Cameras and Total FPS (H.265)
  • 1080p: 12 channels, 360 FPS
  • 3M: 12 channels, 360 FPS
  • 5M: 12 channels, 350 FPS
  • 4K: 12 channels, 200 FPS
  • 1080p: 25 channels, 750 FPS
  • 3M: 25 channels, 600 FPS
  • 5M: 25 channels, 480 FPS
  • 4K: 20 channels, 200 FPS
Notes
  • Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
  • Use NVR Selector to quickly find a suitable model based on your requirements.
  • The number of streams that can be viewed simultaneously is twice the suggested maximum number of cameras. For example, if the suggested maximum number of cameras for a model is 10 under H.264, 1080p, the model can support up to 20 streams of the same specification at the same time.
  • Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
  • Use NVR Selector to quickly find a suitable model based on your requirements.
  • The number of streams that can be viewed simultaneously is twice the suggested maximum number of cameras. For example, if the suggested maximum number of cameras for a model is 10 under H.264, 1080p, the model can support up to 20 streams of the same specification at the same time.
Synology Drive
Maximum Number of Users 5 10
Maximum Number of Hosted Files 100,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) 100,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Notes
  • The suggested maximum number of users is based on the following workload: 20% of users randomly perform file operations (upload, download, move, and delete), and 80% of users are logged in but idle. Learn more
  • Models with SSD support are tested with a single SSD volume.
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
  • The suggested maximum number of users is based on the following workload: 20% of users randomly perform file operations (upload, download, move, and delete), and 80% of users are logged in but idle. Learn more
  • Models with SSD support are tested with a single SSD volume.
  • Models with expandable memory are tested with the maximum supported quantity installed.
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Maximum Number of Users 5 10
Notes
  • The suggested maximum number of users is based on the following workload: 20% of users are executing random actions at an average of 30-second intervals, and 80% of users are logged in and viewing a file. Learn more
  • Models with SSD support are tested with a single SSD volume.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
  • The suggested maximum number of users is based on the following workload: 20% of users are executing random actions at an average of 30-second intervals, and 80% of users are logged in and viewing a file. Learn more
  • Models with SSD support are tested with a single SSD volume.
  • Models with expandable memory are tested with the maximum supported quantity installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Virtual Machine Manager
Recommended Virtual Machine Instances 2 (Learn more)
Recommended Virtual DSM Number (Licenses required) 2 (including 1 Free License)
Notes The specifications vary depending on system configuration and memory size.
VPN Server
Maximum Connections 2 4
Hardware Specs
Hardware Specifications
CPU
CPU Model
DS223j Realtek RTD1619B
DS224+ Intel Celeron J4125
CPU Quantity
DS223j 1
DS224+ 1
CPU Core
DS223j 4
DS224+ 4
CPU Architecture
DS223j 64-bit
DS224+ 64-bit
CPU Frequency
DS223j 1.7 GHz
DS224+ 2.0 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine
DS223j
DS224+
Memory
System Memory
DS223j 1 GB DDR4 non-ECC
DS224+ 2 GB DDR4 non-ECC
Total Memory Slots
DS223j
DS224+ 1
Maximum Memory Capacity
DS223j
DS224+ 6 GB (2 GB + 4 GB)
Notes
DS223j 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.
DS224+
  • 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.
Storage
Drive Bays
DS223j 2
DS224+ 2
Drive Type (See all supported drives)
DS223j
  • 3.5" SATA HDD
  • 2.5" SATA SSD (with optional 2.5" Disk Holder)
DS224+
  • 3.5" SATA HDD
  • 2.5" SATA SSD
Hot Swappable Drive*
DS223j
DS224+
External Ports
RJ-45 1GbE LAN Port
DS223j 1
DS224+ 2
USB 3.2 Gen 1 Port
DS223j 2
DS224+ 2
USB Copy
DS223j
DS224+
Notes
DS223j This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
DS224+ This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
Appearance
Size (Height x Width x Depth)
DS223j 165 mm x 100 mm x 225.5 mm
DS224+ 165 mm x 108 mm x 232.2 mm
Weight
DS223j 0.88 kg
DS224+ 1.30 kg
Others
System Fan
DS223j 92 mm x 92 mm x 1 pcs
DS224+ 92 mm x 92 mm x 1 pcs
Fan Speed Mode
DS223j
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Low-power Mode
DS224+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Brightness Adjustable Front LED Indicators
DS223j
DS224+
Power Recovery
DS223j
DS224+
Noise Level*
DS223j 18.2 dB(A)
DS224+ 22 dB(A)
Scheduled Power On / Off
DS223j
DS224+
Wake on LAN / WAN
DS223j
DS224+
Power Supply Unit / Adapter
DS223j 60 watts
DS224+ 60 watts
AC Input Power Voltage
DS223j 100V to 240V AC
DS224+ 100V to 240V AC
Power Frequency
DS223j 50/60 Hz, Single Phase
DS224+ 50/60 Hz, Single Phase
Power Consumption*
DS223j 16.31 watts (Access)
4 watts (HDD Hibernation)
DS224+ 14.69 watts (Access)
4.41 watts (HDD Hibernation)
British Thermal Unit
DS223j 55.62 BTU/hr (Access)
13.64 BTU/hr (HDD Hibernation)
DS224+ 50.09 BTU/hr (Access)
15.04 BTU/hr (HDD Hibernation)
Notes
DS223j
  • For more information on how power consumption is measured, refer to this article.
  • 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%
DS224+
  • For more information on how power consumption is measured, refer to this article.
  • Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Operating Temperature
DS223j 0°C to 40°C (32°F to 104°F)
DS224+ 0°C to 40°C (32°F to 104°F)
Storage Temperature
DS223j -20°C to 60°C (-5°F to 140°F)
DS224+ -20°C to 60°C (-5°F to 140°F)
Operating Humidity
DS223j 8% to 80% RH
DS224+ 8% to 80% RH
Storage Humidity
DS223j 5% to 95% RH
DS224+ 5% to 95% RH
Certification
DS223j
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
  • BIS
DS224+
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • CCC
  • KC
  • BIS
Warranty
DS223j 2-year hardware warranty, extendable to 4 years with Extended Warranty Plus
DS224+ 2-year hardware warranty, extendable to 4 years with Extended Warranty Plus
Notes
DS223j
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa, and Oceania. For exact availability information please visit their respective websites.
DS224+
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa, and Oceania. For exact availability information please visit their respective websites.
Environment
DS223j RoHS Compliant
DS224+ RoHS Compliant
Packaging Content
DS223j
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 1
  • Quick Installation Guide X 1
DS224+
  • 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
DS223j
DS224+
Notes
DS223j
DS224+ All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
Software Specs
DSM Specifications
Storage Management
Maximum Single Volume Size
DS223j 108 TB
DS224+ 108 TB
Maximum Internal Volume Number
DS223j 64
DS224+ 64
SSD TRIM
DS223j
DS224+
Supported RAID Type
DS223j
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
DS224+
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
RAID Migration
DS223j
  • Basic to RAID 1
DS224+
  • Basic to RAID 1
Volume Expansion with Larger HDDs
DS223j
  • Synology Hybrid RAID
  • RAID 1
DS224+
  • Synology Hybrid RAID
  • RAID 1
Notes
DS223j
  • Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
DS224+
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
File System
Internal Drives
DS223j
  • Btrfs
  • ext4
DS224+
  • Btrfs
  • ext4
External Drives
DS223j
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
DS224+
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
Notes
DS223j Btrfs file system is available from DSM 7.2-64570.
DS224+
File Services
File Protocol
DS223j
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
DS224+
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
Maximum Number of SMB Connections (FSCT-Based)
DS223j 5
DS224+ 5
Windows Access Control List (ACL) Integration
DS223j
DS224+
NFS Kerberos Authentication
DS223j
DS224+
Notes
DS223j
  • Connection value of this model is tested with Synology SATA HDD fully populated and all onboard network ports
  • SMB performance was evaluated using Microsoft File Server Capacity Tool (FSCT) version 1.3, with the following configuration:
    • Test workload: HomeFolder scenario provided by the FSCT tool
    • Test duration: 600 seconds
    • Domain controller & FSCT controller: Windows Server 2022
    • FSCT clients: 8 × Windows 10 machines
    • SMB feature: Directory leasing enabled
DS224+
  • Connection value of this model is tested with Synology SATA HDD fully populated and all onboard network ports
  • Models with expandable memory are tested with the maximum supported quantity installed.
  • SMB performance was evaluated using Microsoft File Server Capacity Tool (FSCT) version 1.3, with the following configuration:
    • Test workload: HomeFolder scenario provided by the FSCT tool
    • Test duration: 600 seconds
    • Domain controller & FSCT controller: Windows Server 2022
    • FSCT clients: 8 × Windows 10 machines
    • SMB feature: Directory leasing enabled
Account & Shared Folder
Maximum Local User Accounts
DS223j 256
DS224+ 512
Maximum Local Groups
DS223j 64
DS224+ 128
Maximum Shared Folder
DS223j 64
DS224+ 128
Maximum Shared Folder Sync Tasks
DS223j 2
DS224+ 4
Hybrid Share
Maximum Hybrid Share Folders
DS223j
DS224+ 10
Hyper Backup
Folder and Package Backup
DS223j
DS224+
Entire System Backup
DS223j
DS224+
Notes
DS223j
DS224+ Full-system backup requires DSM 7.2 or later.
High Availability
Synology High Availability
DS223j
DS224+
Log Center
DS223j
DS224+
Syslog Events per Second
DS223j 200
DS224+ 800
General Specifications
Supported Protocols
DS223j SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
DS224+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
DS223j
  • Chrome
  • Firefox
  • Edge
  • Safari
DS224+
  • Chrome
  • Firefox
  • Edge
  • Safari
Supported Language
DS223j 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
DS224+ 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
Notes
DS223j For an updated list of supported browser versions, check the DSM Technical Specifications.
DS224+ For an updated list of supported browser versions, check the DSM Technical Specifications.
Add-on Packages view the complete package list
Central Management System
DS223j
DS224+
Synology Chat
DS223j
DS224+
Maximum Number of Users
DS223j
DS224+ 100
Notes
DS223j
DS224+
  • Measured with simulated users, each with an average record of 20,000 messages, emojis, or stickers. The required server response time is below ten seconds.
  • Models with expandable memory are tested with the maximum supported quantity installed.
Download Station
DS223j
DS224+
Maximum Concurrent Download Tasks
DS223j 80
DS224+ 80
SAN Manager
DS223j
DS224+
Maximum iSCSI Target Number
DS223j 2
DS224+ 2
Maximum LUN
DS223j 2
DS224+ 2
LUN Clone/Snapshot, Windows ODX
DS223j
DS224+
Synology MailPlus / MailPlus Server
DS223j
DS224+
Free Email Accounts
DS223j
DS224+ 5 (Additional accounts require purchase of licenses)
Maximum Number of Users
DS223j
DS224+ 20
Notes
DS223j
DS224+
  • The suggested maximum number of users is based on the following workload: 20% of users with a 20,000 item mailbox randomly performing actions and receiving 240 emails per day, and 80% of users receiving 20 emails per day. Learn more
  • Models with SSD support are tested with a single SSD volume.
  • Models with expandable memory are tested with the maximum supported quantity installed. Learn more about memory requirements.
  • Operating in high-availability mode will incur additional overhead.
  • Features enabled during evaluation: anti-spam, anti-virus, DNSBL, greylist, content scanning, and full-text search (English).
Media Server
DS223j
DS224+
DLNA Compliance
DS223j
DS224+
Synology Photos
DS223j
DS224+
Facial Recognition
DS223j
DS224+
Object Recognition
DS223j
DS224+
Notes
DS223j
DS224+ Object recognition requires an upgrade of memory capacity to a minimum of 4 GB.
Snapshot Replication
DS223j
DS224+
Maximum Snapshots per Shared Folder
DS223j 128
DS224+ 128
Maximum of System Snapshots
DS223j 256
DS224+ 256
Notes
DS223j Snapshot Replication is available from DSM 7.2-64570.
DS224+
Surveillance Station
DS223j
DS224+
Default Licenses
DS223j 2 (Additional cameras require purchase of licenses)
DS224+ 2 (Additional cameras require purchase of licenses)
Suggested Maximum IP Cameras and Total FPS (H.264)
DS223j
  • 1080p: 12 channels, 360 FPS
  • 3M: 12 channels, 300 FPS
  • 5M: 12 channels, 150 FPS
  • 4K: 11 channels, 110 FPS
DS224+
  • 1080p: 25 channels, 750 FPS
  • 3M: 25 channels, 350 FPS
  • 5M: 25 channels, 280 FPS
  • 4K: 17 channels, 170 FPS
Suggested Maximum IP Cameras and Total FPS (H.265)
DS223j
  • 1080p: 12 channels, 360 FPS
  • 3M: 12 channels, 360 FPS
  • 5M: 12 channels, 350 FPS
  • 4K: 12 channels, 200 FPS
DS224+
  • 1080p: 25 channels, 750 FPS
  • 3M: 25 channels, 600 FPS
  • 5M: 25 channels, 480 FPS
  • 4K: 20 channels, 200 FPS
Notes
DS223j
  • Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
  • Use NVR Selector to quickly find a suitable model based on your requirements.
  • The number of streams that can be viewed simultaneously is twice the suggested maximum number of cameras. For example, if the suggested maximum number of cameras for a model is 10 under H.264, 1080p, the model can support up to 20 streams of the same specification at the same time.
DS224+
  • Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
  • Use NVR Selector to quickly find a suitable model based on your requirements.
  • The number of streams that can be viewed simultaneously is twice the suggested maximum number of cameras. For example, if the suggested maximum number of cameras for a model is 10 under H.264, 1080p, the model can support up to 20 streams of the same specification at the same time.
Synology Drive
DS223j
DS224+
Maximum Number of Users
DS223j 5
DS224+ 10
Maximum Number of Hosted Files
DS223j 100,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
DS224+ 100,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Notes
DS223j
  • The suggested maximum number of users is based on the following workload: 20% of users randomly perform file operations (upload, download, move, and delete), and 80% of users are logged in but idle. Learn more
  • Models with SSD support are tested with a single SSD volume.
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
DS224+
  • The suggested maximum number of users is based on the following workload: 20% of users randomly perform file operations (upload, download, move, and delete), and 80% of users are logged in but idle. Learn more
  • Models with SSD support are tested with a single SSD volume.
  • Models with expandable memory are tested with the maximum supported quantity installed.
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
DS223j
DS224+
Maximum Number of Users
DS223j 5
DS224+ 10
Notes
DS223j
  • The suggested maximum number of users is based on the following workload: 20% of users are executing random actions at an average of 30-second intervals, and 80% of users are logged in and viewing a file. Learn more
  • Models with SSD support are tested with a single SSD volume.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
DS224+
  • The suggested maximum number of users is based on the following workload: 20% of users are executing random actions at an average of 30-second intervals, and 80% of users are logged in and viewing a file. Learn more
  • Models with SSD support are tested with a single SSD volume.
  • Models with expandable memory are tested with the maximum supported quantity installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Virtual Machine Manager
DS223j
DS224+
Recommended Virtual Machine Instances
DS223j
DS224+ 2 (Learn more)
Recommended Virtual DSM Number (Licenses required)
DS223j
DS224+ 2 (including 1 Free License)
Notes
DS223j
DS224+ The specifications vary depending on system configuration and memory size.
VPN Server
DS223j
DS224+
Maximum Connections
DS223j 2
DS224+ 4