DiskStation DS223j

Compact, quiet, and energy-efficient storage

DS223j
DS223j
Secure private cloud

Secure private cloud

Anywhere, anytime secure access to all your data.

Easy sharing and syncing

Easy sharing and syncing

Safely access and share files and media from anywhere.

Comprehensive data protection

Comprehensive data protection

Hardware and software engineered to protect your data — trusted by millions.

Built for sharing

DS223j is designed for small teams to share, sync, and collaborate more efficiently.

Multi-platform file access

Manage your files and media from anywhere with Synology Drive. Available on PC, Mac, Linux, Chromebook, Android, iOS, or any device equipped with a browser.

Multi-platform file access

Real-time collaboration

Stay productive while working in a team or with your clients. Work together across different platforms using Synology Office.

Real-time collaboration

Sync across sites

Keeping data synced between different sites has never been easier. Synology Drive ShareSync keeps files and folders synchronized across Synology systems.

Sync across sites

Seamless synchronization to clouds

Sync files between your private cloud and public cloud storage platforms, including Google Drive, Dropbox, Microsoft OneDrive, and more with Synology Cloud Sync. Retain local copies of your cloud data to centralize management and achieve data ownership.

Seamless synchronization to clouds

Your data in safe hands with Btrfs1

The advanced Btrfs file system helps safeguard data against corruption through file self-healing and allows for the reversal of unintentional or malicious changes through fast snapshot technology. Learn more

Your data in safe hands with Btrfs<sup>1</sup>

Store, share, and protect

Configure your DS223j to manage all your documents, photos, and other files, or protect your physical assets with professional video surveillance.


Photo management

Manage your photo collection
Sharing made safer and easier
Manage your photo collection
Sharing made safer and easier

Data protection

Automated media backup
Protection against cyberattacks
Automated media backup
Protection against cyberattacks

Video surveillance

Wide compatibility
Universal access
Wide compatibility
Universal access

Add an extra layer of protection

Perform full Synology system backups
Keep your data safe with snapshots
Perform full Synology system backups
Keep your data safe with snapshots

Extra protection with Extended Warranty Plus

Extend the standard 2-year hardware warranty4 of your DS223j with 2 more years of Synology-certified support and premium services to help you recover faster in the event of disaster.5

DiskStation DS223j

product DS223j front view photo
product DS223j back view photo
  • 1Status Indicator
  • 2LAN Indicator
  • 3Drive Status Indicators
  • 4Power Button and Indicator
  • 5Fan
  • 61GbE RJ-45 Port
  • 7USB 3.2 Gen 1 Ports
  • 8Reset Button
  • 9Power Port
  • 10Kensington Security Slot

More ways to harness your NAS

Notes:

  1. Feature available from DSM 7.2.

  2. Surveillance Station includes 2 free licenses. Connecting more cameras and devices requires additional licenses.

  3. C2 Storage for Hyper Backup requires purchase of an eligible annual or monthly subscription. A free trial is available for each newly registered Synology Account. Learn more

  4. Extended Warranty Plus must be purchased within 90 days of the device purchase date, or if none is available, 180 days of the device manufacturing date. A Synology Account is required for the purchase. The starting date of the Extended Warranty Plus additional coverage is calculated based on the purchase date of your Synology NAS. If you cannot provide proof of purchase, the device manufacturing date applies.

  5. Express shipping is a paid add-on available in select countries only.

Hardware Specifications
CPU
CPU
CPU Model Realtek RTD1619B
CPU Quantity 1
CPU Architecture 64-bit
CPU Frequency 4-core 1.7 GHz
Hardware Encryption Engine
Memory
Memory
System Memory 1 GB DDR4 non-ECC
Total Memory Slots 0
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.
Storage
Storage
Drive Bays 2
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA SSD (with optional 2.5" Disk Holder)
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.
External Ports
External Ports
RJ-45 1GbE LAN Port 1
USB 3.2 Gen 1 Port* 2
Notes
  • This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
  • The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
Appearance
Appearance
Size (Height x Width x Depth) 165 mm x 100 mm x 225.5 mm
Weight 0.88 kg
Others
Others
System Fan 92 mm x 92 mm x 1 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Low-power Mode
Brightness Adjustable Front LED Indicators
Power Recovery
Noise Level* 18.2 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 60 W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption 16.31 W (Access)
4 W (HDD Hibernation)
British Thermal Unit 55.62 BTU/hr (Access)
13.64 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%
Temperature
Temperature
Operating Temperature 0°C to 40°C (32°F to 104°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH
Certification
Certification
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
Warranty
Warranty
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.
Environment
Environment
RoHS Compliant
Packaging Content
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
Optional Accessories
Optional Accessories
DSM Specifications
Maximum Single Volume Size 108 TB
Maximum Internal Volume Number 64
Supported RAID Type
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
RAID Migration
  • Basic to RAID 1
Volume Expansion with Larger HDDs
  • Synology Hybrid RAID
  • RAID 1
Volume Expansion by Adding a HDD
  • Synology Hybrid RAID
Notes
  • 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 depend on drive sizes used, the number of drive bays available, and the RAID configuration.
Internal Drives
  • Btrfs
  • ext4
External Drives
  • Btrfs
  • ext4
  • ext3
  • FAT
  • NTFS
  • HFS+
  • exFAT
Notes Btrfs file system is available from DSM 7.2-64570.
File Protocol
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
Maximum Concurrent SMB/AFP/FTP Connections 100
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Notes The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.
Maximum Local User Accounts 1,024
Maximum Local Groups 256
Maximum Shared Folder 256
Maximum Shared Folder Sync Tasks 4
Folder and Package Backup
Syslog Events per Second 200
Supported Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
  • 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
Notes For an updated list of supported browser versions, check the DSM Technical Specifications.
Download Station
Download Station
Maximum Concurrent Download Tasks 80
Maximum iSCSI Target Number 10
Maximum LUN 10
LUN Clone/Snapshot, Windows ODX
DLNA Compliance
Facial Recognition
Maximum Snapshots per Shared Folder 256
Maximum of System Snapshots 4,096
Notes Snapshot Replication is available from DSM 7.2-64570.
Default Licenses 2 (Additional cameras require purchase of licenses)
Maximum IP Cameras and Total FPS (H.264)
  • 720p: 12 channels, 360 FPS
  • 1080p: 12 channels, 360 FPS
  • 3M: 12 channels, 300 FPS
  • 5M: 12 channels, 150 FPS
  • 4K: 11 channels, 110 FPS
Maximum IP Cameras and Total FPS (H.265)
  • 720p: 12 channels, 360 FPS
  • 1080p: 12 channels, 360 FPS
  • 3M: 12 channels, 360 FPS
  • 5M: 12 channels, 350 FPS
  • 4K: 12 channels, 200 FPS
Notes
  • Performance figures are obtained from testing conducted with the device fully populated with drives 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.
Recommended Number of Concurrent Sync Clients 200 (the number of connections that can be maintained when the recommended number of hosted files was reached)
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)
Notes
  • 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.
Suggested Maximum Users 500
Suggested Concurrent Users 200
Notes
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Maximum Connections 10

Notes:

  1. Model specifications are subject to change without prior notice.
  2. The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
  3. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
  4. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.