| Specification | Details |
|---|---|
| Hardware Specifications | |
| CPU | |
| CPU Model | Realtek RTD1619B |
| CPU Quantity | 1 |
| CPU Cores | 4 |
| CPU Threads | 4 |
| CPU Architecture | 64-bit |
| CPU Frequency | 1.7GHz |
| Hardware Encryption Engine | Yes |
| Memory | |
| System Memory | 1GB DDR4 non-ECC |
| Memory Note | Synology may revise pre-installed memory module specifications due to component lifecycle and supply conditions. Revised components are validated for compatibility, stability and performance. |
| Storage | |
| Drive Bays | 2 × 3.5" SATA HDD or 2.5" SATA SSD |
| Hot Swappable Drive | No |
| Storage Note | To install 2.5" drives, optional Type C drive holder is required. |
| External Ports | |
| RJ-45 1GbE LAN Port | 1 |
| USB 3.2 Gen 1 Port | 2 |
| Network Note | MTU value of 1GbE LAN port has a limit of 1500. |
| Appearance | |
| Dimensions | 165 × 100 × 225.5 mm |
| Weight | 0.88kg |
| Others | |
| System Fan | 92 × 92 mm, 1 piece |
| 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 | 60W |
| AC Input Power Voltage | 100V to 240V AC |
| Power Frequency | 50/60Hz, Single Phase |
| Power Consumption | 16.31W access; 4W HDD hibernation |
| British Thermal Unit | 55.62 BTU/hr access; 13.64 BTU/hr HDD hibernation |
| Noise Level Note | Tested fully loaded with Seagate 2TB ST2000VN000 hard drives in idle state, with microphones 1m away from the front and rear of the NAS. |
| Temperature | |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 60°C |
| Operating Humidity | 8% to 80% RH |
| Storage Humidity | 5% to 95% RH |
| Certification | |
| Certifications | FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS |
| Warranty | |
| Warranty | 2-Year Hardware Warranty |
| Warranty Note | Warranty period starts from the purchase date stated on the receipt. If valid proof of purchase is not presented, warranty starts from the manufacturing date based on Synology’s internal records. |
| Environment | |
| Environmental Compliance | RoHS Compliant |
| Packaging Content | |
| Box Contents | Main Unit × 1, Accessory Pack × 1, AC Power Adapter × 1, AC Power Cord × 1, RJ-45 LAN Cable × 1, Quick Installation Guide × 1 |
| Optional Accessories | |
| Optional Accessories | Plus Series 3.5" SATA HDD: HAT3300 Series; Disk Holder: Type C |
| DSM Specifications | |
| Storage Management | |
| Maximum Single Volume Size | 108TB |
| 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 |
| Storage Management Note | Actual maximum storage pool and volume sizes depend on drive sizes, number of drive bays and RAID configuration. Usable capacity will be lower depending on filesystem and system metadata. |
| File System | |
| Internal Drives | Btrfs, ext4 |
| External Drives | Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT |
| File System Note | Btrfs file system is available from DSM 7.2-64570. |
| File Services | |
| File Protocol | SMB, AFP, NFS, FTP, WebDAV, Rsync |
| Maximum SMB Connections | 5 |
| Windows ACL Integration | Yes |
| NFS Kerberos Authentication | Yes |
| File Services Note | Connection value tested with Synology SATA HDD fully populated and all onboard network ports. |
| Account & Shared Folder | |
| Maximum Local User Accounts | 256 |
| Maximum Local Groups | 64 |
| Maximum Shared Folders | 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, SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPS, FTP, SNMP, LDAP, CalDAV |
| Supported Browsers | Chrome, Firefox, Edge, Safari |
| Supported Languages | 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 |
| General Note | For the latest supported browser versions, refer to DSM Technical Specifications. |
Product Features
Synology DiskStation DS223j is a compact 2-bay NAS designed for home users and small teams to store, share, sync and protect important files in one secure private cloud.
- Centralized storage for documents, photos, videos and other important files
- Secure private cloud access from PC, Mac, Linux, Chromebook, Android, iOS or web browser
- Easy file sharing and syncing with Synology Drive
- Supports real-time collaboration with Synology Office
- Sync files across different Synology systems using Synology Drive ShareSync
- Sync with public cloud platforms such as Google Drive, Dropbox and Microsoft OneDrive using Synology Cloud Sync
- Btrfs file system helps protect data against corruption with file self-healing and snapshot technology
- Automatic photo and video backup from mobile devices with Synology Photos or Synology Drive
- Helps protect PC folders from ransomware attacks or accidental deletion through real-time or scheduled backup
- Supports Synology Surveillance Station for video surveillance with compatible IP cameras and ONVIF devices
- Supports Hyper Backup for full NAS, system setting, application and folder backups
- Compact, quiet and energy-efficient design suitable for everyday storage and backup needs
