1. products list

Comparison results

DS223j DS423
Hardware Specs
Hardware Specifications
CPU
CPU Model Realtek RTD1619B Realtek RTD1619B
CPU Quantity 1 1
CPU Cores 4 4
CPU Threads 4 4
CPU Architecture 64-bit 64-bit
CPU Frequency 1.7 GHz 1.7 GHz
Hardware Encryption Engine
Memory
System Memory 1 GB DDR4 non-ECC 2 GB DDR4 non-ECC
Notes Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and performance. Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and performance.
Storage
Drive Bays 2 4
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
Notes MTU value of 1GbE LAN port has a limit of 1500. MTU value of 1GbE LAN port has a limit of 1500.
Appearance
Size (Height x Width x Depth) 165 mm x 100 mm x 225.5 mm 184 mm x 168 mm x 230 mm
Weight 0.88 kg 2.21 kg
Others
System Fan 92 mm x 92 mm x 1 pcs 80 mm x 80 mm x 2 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) 20.6 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 60 watts 90 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)		 32.41 watts (Access)
4.97 watts (HDD Hibernation)
British Thermal Unit 55.62 BTU/hr (Access)
13.64 BTU/hr (HDD Hibernation)		 110.52 BTU/hr (Access)
16.95 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 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)
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
  • EAC
  • 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. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more)
  • 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. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more)
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
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 5
  • RAID 6
  • RAID 10
RAID Migration
  • Basic to RAID 1
  • 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
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Volume Expansion by Adding a HDD
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
Global Hot Spare Supported RAID Type
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
Notes
  • Actual maximum storage pool and volume sizes vary depending on drives 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.
  • Actual maximum storage pool and volume sizes vary depending on drives 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
  • 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 256 256
Maximum Local Groups 64 64
Maximum Shared Folder 64 64
Maximum Shared Folder Sync Tasks 2 2
Hyper Backup
Folder and Package Backup
Log Center
Syslog Events per Second 200 400
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
Synology Chat
Download Station
Maximum Concurrent Download Tasks 80 80
SAN Manager
Maximum iSCSI Target Number 2 2
Maximum LUN 4 4
LUN Clone/Snapshot, Windows ODX
Media Server
DLNA Compliance
Synology Photos
Facial Recognition
Snapshot Replication
Maximum Snapshots per Shared Folder 128 128
Maximum Snapshots per LUN 32 32
Maximum Snapshots per System 1,024 1,024
Maximum Replication Tasks for Shared Folders 16 16
Maximum Replication Tasks for LUNs 8 8
Maximum Replication Tasks per System 16 16
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)
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: 30 channels, 600 FPS
  • 3M: 30 channels, 300 FPS
  • 5M: 20 channels, 200 FPS
  • 4K: 15 channels, 150 FPS
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: 30 channels, 800 FPS
  • 3M: 30 channels, 500 FPS
  • 5M: 30 channels, 450 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 video channels that can be viewed simultaneously is double the maximum number of cameras for the same codec and resolution.
  • 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 video channels that can be viewed simultaneously is double the maximum number of cameras for the same codec and resolution.
Synology Drive
Maximum Number of Users 5 5
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.
  • 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 5
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.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
VPN Server
Maximum Connections 2 2
Hardware Specs
Hardware Specifications
CPU
CPU Model
DS223j Realtek RTD1619B
DS423 Realtek RTD1619B
CPU Quantity
DS223j 1
DS423 1
CPU Cores
DS223j 4
DS423 4
CPU Threads
DS223j 4
DS423 4
CPU Architecture
DS223j 64-bit
DS423 64-bit
CPU Frequency
DS223j 1.7 GHz
DS423 1.7 GHz
Hardware Encryption Engine
DS223j
DS423
Memory
System Memory
DS223j 1 GB DDR4 non-ECC
DS423 2 GB DDR4 non-ECC
Notes
DS223j Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and performance.
DS423 Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and performance.
Storage
Drive Bays
DS223j 2
DS423 4
Drive Type (See all supported drives)
DS223j
  • 3.5" SATA HDD
  • 2.5" SATA SSD (with optional 2.5" Disk Holder)
DS423
  • 3.5" SATA HDD
  • 2.5" SATA SSD
Hot Swappable Drive*
DS223j
DS423
External Ports
RJ-45 1GbE LAN Port
DS223j 1
DS423 2
USB 3.2 Gen 1 Port
DS223j 2
DS423 2
Notes
DS223j MTU value of 1GbE LAN port has a limit of 1500.
DS423 MTU value of 1GbE LAN port has a limit of 1500.
Appearance
Size (Height x Width x Depth)
DS223j 165 mm x 100 mm x 225.5 mm
DS423 184 mm x 168 mm x 230 mm
Weight
DS223j 0.88 kg
DS423 2.21 kg
Others
System Fan
DS223j 92 mm x 92 mm x 1 pcs
DS423 80 mm x 80 mm x 2 pcs
Fan Speed Mode
DS223j
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Low-power Mode
DS423
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Brightness Adjustable Front LED Indicators
DS223j
DS423
Power Recovery
DS223j
DS423
Noise Level*
DS223j 18.2 dB(A)
DS423 20.6 dB(A)
Scheduled Power On / Off
DS223j
DS423
Wake on LAN / WAN
DS223j
DS423
Power Supply Unit / Adapter
DS223j 60 watts
DS423 90 watts
AC Input Power Voltage
DS223j 100V to 240V AC
DS423 100V to 240V AC
Power Frequency
DS223j 50/60 Hz, Single Phase
DS423 50/60 Hz, Single Phase
Power Consumption
DS223j 16.31 watts (Access)
4 watts (HDD Hibernation)
DS423 32.41 watts (Access)
4.97 watts (HDD Hibernation)
British Thermal Unit
DS223j 55.62 BTU/hr (Access)
13.64 BTU/hr (HDD Hibernation)
DS423 110.52 BTU/hr (Access)
16.95 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%
DS423
  • 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%
Temperature
Operating Temperature
DS223j 0°C to 40°C (32°F to 104°F)
DS423 0°C to 40°C (32°F to 104°F)
Storage Temperature
DS223j -20°C to 60°C (-5°F to 140°F)
DS423 -20°C to 60°C (-5°F to 140°F)
Operating Humidity
DS223j 8% to 80% RH
DS423 8% to 80% RH
Storage Humidity
DS223j 5% to 95% RH
DS423 5% to 95% RH
Certification
DS223j
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
  • BIS
DS423
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
  • BIS
Warranty
DS223j 2-year hardware warranty, extendable to 4 years with Extended Warranty Plus
DS423 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. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more)
DS423
  • 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. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more)
Environment
DS223j RoHS Compliant
DS423 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
DS423
  • 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
DS423
Software Specs
DSM Specifications
Storage Management
Maximum Single Volume Size
DS223j 108 TB
DS423 108 TB
Maximum Internal Volume Number
DS223j 64
DS423 64
SSD TRIM
DS223j
DS423
Supported RAID Type
DS223j
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
DS423
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
DS223j
  • Basic to RAID 1
DS423
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
DS223j
  • Synology Hybrid RAID
  • RAID 1
DS423
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Volume Expansion by Adding a HDD
DS223j
DS423
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
Global Hot Spare Supported RAID Type
DS223j
DS423
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
Notes
DS223j
  • Actual maximum storage pool and volume sizes vary depending on drives 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.
DS423
  • Actual maximum storage pool and volume sizes vary depending on drives 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
DS423
  • Btrfs
  • ext4
External Drives
DS223j
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
DS423
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
Notes
DS223j Btrfs file system is available from DSM 7.2-64570.
DS423
File Services
File Protocol
DS223j
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
DS423
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
Maximum Number of SMB Connections (FSCT-Based)
DS223j 5
DS423 5
Windows Access Control List (ACL) Integration
DS223j
DS423
NFS Kerberos Authentication
DS223j
DS423
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
DS423
  • 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
Account & Shared Folder
Maximum Local User Accounts
DS223j 256
DS423 256
Maximum Local Groups
DS223j 64
DS423 64
Maximum Shared Folder
DS223j 64
DS423 64
Maximum Shared Folder Sync Tasks
DS223j 2
DS423 2
Hyper Backup
Folder and Package Backup
DS223j
DS423
Log Center
DS223j
DS423
Syslog Events per Second
DS223j 200
DS423 400
General Specifications
Supported Protocols
DS223j SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
DS423 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
DS423
  • 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
DS423 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.
DS423 For an updated list of supported browser versions, check the DSM Technical Specifications.
Add-on Packages view the complete package list
Synology Chat
DS223j
DS423
Download Station
DS223j
DS423
Maximum Concurrent Download Tasks
DS223j 80
DS423 80
SAN Manager
DS223j
DS423
Maximum iSCSI Target Number
DS223j 2
DS423 2
Maximum LUN
DS223j 4
DS423 4
LUN Clone/Snapshot, Windows ODX
DS223j
DS423
Media Server
DS223j
DS423
DLNA Compliance
DS223j
DS423
Synology Photos
DS223j
DS423
Facial Recognition
DS223j
DS423
Snapshot Replication
DS223j
DS423
Maximum Snapshots per Shared Folder
DS223j 128
DS423 128
Maximum Snapshots per LUN
DS223j 32
DS423 32
Maximum Snapshots per System
DS223j 1,024
DS423 1,024
Maximum Replication Tasks for Shared Folders
DS223j 16
DS423 16
Maximum Replication Tasks for LUNs
DS223j 8
DS423 8
Maximum Replication Tasks per System
DS223j 16
DS423 16
Notes
DS223j Snapshot Replication is available from DSM 7.2-64570.
DS423
Surveillance Station
DS223j
DS423
Default Licenses
DS223j 2 (Additional cameras require purchase of licenses)
DS423 2 (Additional cameras require purchase of licenses)
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
DS423
  • 1080p: 30 channels, 600 FPS
  • 3M: 30 channels, 300 FPS
  • 5M: 20 channels, 200 FPS
  • 4K: 15 channels, 150 FPS
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
DS423
  • 1080p: 30 channels, 800 FPS
  • 3M: 30 channels, 500 FPS
  • 5M: 30 channels, 450 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 video channels that can be viewed simultaneously is double the maximum number of cameras for the same codec and resolution.
DS423
  • 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 video channels that can be viewed simultaneously is double the maximum number of cameras for the same codec and resolution.
Synology Drive
DS223j
DS423
Maximum Number of Users
DS223j 5
DS423 5
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)
DS423 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.
DS423
  • 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.
Synology Office
DS223j
DS423
Maximum Number of Users
DS223j 5
DS423 5
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
DS423
  • 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
VPN Server
DS223j
DS423
Maximum Connections
DS223j 2
DS423 2