DiskStation

DS223j

Enterprise-grade diskstation storage solution

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

Uncompromising performance

Throughput

1x 1GbE LAN ports

Scalability

2 drive bays

CPU

4-core Realtek RTD1619B @ 1.7 GHz

Memory

1 GB DDR4 non-ECC

Built for sharing

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

Your data in safe hands with Btrfs

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

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.

More ways to harness your NAS

Store, access, and share files securely and efficiently with the native solutions available in Synology DSM.

Powered by Synology DiskStation Manager

Enterprise-grade software solutions included

Multi-platform file access

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

Real-time collaboration

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

Sync across sites

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

Seamless synchronization to clouds

Sync files between your private cloud and public cloud storage platforms, including Google Drive, Dropbox, Microsoft OneDrive, and more withSynology Cloud Sync. Retain local copies of your cloud data

File management

Store, access, and share files securely and efficiently with the native solutions available in Synology DSM.

Productivity Solutions

Bring teams together, communicate, and collaborate in real time on a protected and private platform.

(DS223j)

Technical Specifications

Complete hardware and software specifications

CPU

CPU Model Realtek RTD1619B

CPU Quantity 1

CPU Cores 4

CPU Threads 4

CPU Architecture 64-bit

CPU Frequency 1.7 GHz

Hardware Encryption Engine Yes

Memory

System Memory 1 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.

Storage

Drive Bays 2

Drive Type(See all supported drives) 3.5" SATA HDD 2.5" SATA SSD (with optional 2.5" Disk Holder)

Hot Swappable Drive* -

External Ports

RJ-45 1GbE LAN Port 1

USB 3.2 Gen 1 Port 2

Notes 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

Weight 0.88 kg

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 Yes

Power Recovery Yes

Noise Level* 18.2 dB(A)

Scheduled Power On / Off Yes

Wake on LAN / WAN Yes

Power Supply Unit / Adapter 60 watts

AC Input Power Voltage 100V to 240V AC

Power Frequency 50/60 Hz, Single Phase

Power Consumption 16.31 watts (Access) 4 watts (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

Operating Temperature 0°C to 40°C (32°F to 104°F)

Storage Temperature -20°C to 60°C (-5°F to 140°F)

Operating Humidity 8% to 80% RH

Storage Humidity 5% to 95% RH

Certification

Certification FCC CE BSMI VCCI RCM UKCA EAC CCC KC BIS

Warranty

Warranty 2-year hardware warranty

Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) In the event that a valid receipt of purchase of Product or Product invoice is not presented, or is apparently erroneous or falsified, the Warranty Period for the presented Product shall commence from the manufacturing date in accordance with Synology's internal records.

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 Plus Series 3.5" SATA HDD: HAT3300 Series Disk Holder: Type C

Storage Management

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

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.

File System

Internal Drives Btrfs ext4

External Drives 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

Maximum Number of SMB Connections (FSCT-Based) 5

Windows Access Control List (ACL) Integration Yes

NFS Kerberos Authentication Yes

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

Account & Shared Folder

Maximum Local User Accounts 256

Maximum Local Groups 64

Maximum Shared Folder 64

Maximum Shared Folder Sync Tasks 2

Hyper Backup

Data & Folder Backup Yes

Log Center

Syslog Events per Second 200

General Specifications

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 .

Synology Chat

Synology Chat Yes

Download Station

Maximum Concurrent Download Tasks 80

SAN Manager

Maximum iSCSI Target Number 2

Maximum LUN 4

LUN Clone/Snapshot, Windows ODX Yes

Media Server

DLNA Compliance Yes

Synology Photos

Facial Recognition Yes

Snapshot Replication

Maximum Snapshots per Shared Folder 128

Maximum Snapshots per LUN 32

Maximum Snapshots per System 1,024

Maximum Replication Tasks for Shared Folders 16

Maximum Replication Tasks for LUNs 8

Maximum Replication Tasks per System 16

Notes Snapshot Replication is available from DSM 7.2-64570.

Surveillance Station

Default 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

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

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.

Synology Drive

Maximum Number of Users 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)

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.

Synology Office

Maximum Number of Users 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

VPN Server

Maximum Connections 2

SKU	DS223j
Barcode #	846504004768
Brand	SYNOLOGY
Shipping Weight	2.7000kg
Shipping Width	0.130m
Shipping Height	0.290m
Shipping Length	0.280m
Shipping Cubic	0.010530000m3