All-in-one file management and sharing hub
- The DS223j is an efficient one-stop solution for all your data storage and sharing needs. With two bays of storage and Synology DiskStation Manager (DSM) on board, the DS223j allows you to create a private cloud to protect your files,
share your data across several devices, store security footage with intelligent video surveillance tools, and more.

Access Your Files Anytime, Anywhere
- Organize data scattered across devices. Your Synology NAS can serve as a go-to platform to securely and conveniently store any type of data with comprehensive and intuitive access and management tools.
- Enable QuickConnect to access your NAS securely from anywhere without configuring complex port forwarding rules
- Browse and manage your files and media from any browser with Synology Drive, or access data through your default file browser using common network protocols
- Keep your photos and videos organized using Synology Photos’ smart sorting functions
- Deploy your Synology NAS as edge storage and fit it easily into existing infrastructure thanks to Windows AD and LDAP integration

Collaboration and Synchronization Platform
- Easily share documents with colleagues and boost productivity while working in a team or with your clients.
- Build a private data cloud for easy file management and sharing across all platforms, and keep data in sync between two Synology systems with Synology Drive
- Synchronize data to and from popular cloud storage platforms with Synology Cloud Sync
- Share media with colleagues or collaborators through the privacy-focused sharing options in Synology Photos

Features
Centralized Data Storage
- Consolidate up to 36 TB of data,1 and enjoy 100% data ownership and multi-platform access from anywhere.

Next-Generation File System
- Leverage file self-healing, lightning-fast data snapshots, and rapid data cloning.

Secure Sharing and Syncing
- Safely access and share files and media from anywhere, and keep clients, colleagues and collaborators on the same page

Simple Data Protection
- Back up your media library or document repository to a variety of destinations

Versatile Camera Surveillance
- Protect your premises with flexible monitoring tools

Specifications
Hardware
- CPU: Realtek RTD1619B
- Memory: 1 GB DDR4
- Compatible drive types: 2 x 3.5" or 2.5" SATA HDD/SSD (drives not included.)

- Hot swappable drives: No
- External ports: 2 x USB 3.2 Gen 1 ports
- Form factor: Desktop
- Size (HxWxD): 165 x 100 x 225.5 mm
- Weight: 0.88 kg
- LAN ports: 1 x 1GbE RJ-45
- Wake on LAN/WAN: Yes
- Scheduled power on/off: Yes
- System fans: 1 x (92 x 92 x 25 mm)
- AC input power voltage: 100 V to 240 V AC
- Power frequency: 50/60 Hz, single phase

Operating environment:
- Temperature: 0°C to 40°C (32°F to 104°F)
- Relative humidity: 8% to 80% RH

Storage environment:
- Temperature: -20°C to 60°C (-5°F to 140°F)
- Relative humidity: 5% to 95% RH
- Maximum operating altitude: 5,000 m (16,400 ft

General DSM Specifications
- Networking protocols: SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, and VPN (PPTP, OpenVPN™, L2TP)

File systems
- Internal: Btrfs2, ext4
- External: Btrfs2, ext4, ext3, FAT32, NTFS, HFS+, exFAT
- Supported RAID types: Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1

Storage management
- Max. single volume size: 108 TB
- Max. number of system snapshots: 4,0967
- Max. number of internal volumes: 64

File sharing capabilities
- Max. number of local user accounts: 1,024
- Max. number of local groups: 256
- Max. number of shared folders: 256
- Max. number of concurrent SMB/NFS/AFP/FTP connections: 100

- Privileges: Windows Access Control List (ACL) and application privileges
- Directory services: Connects with Windows AD/LDAP servers enabling domain users to login via SMB/NFS/AFP/FTP/File Station using their existing credentials
- Security: Firewall, shared folder encryption, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let's Encrypt support, and HTTPS (customizable cipher suite)
- Supported browsers: Google Chrome, Firefox, Microsoft Edge, Safari 14 and later, and Safari (iOS 14.0 and later) on iPad, Chrome (Android 11.0 and later) on tablets
- Interface languages: English, Deutsch, Français, Italiano, Espanol, Dansk, Norsk, Svenska, Nederlands, Polski, Magyar, Portugues do Brasil, Portugues Europeu, Türkçe, Český