Synology DS223j DiskStation 2-Bay Tower NAS
2-bay DiskStation, Quad Core 1.4 GHz, 512MB RAM. Compact, quiet, and energy-efficient storage All-in-one platform to organize your data Secure private cloud Anywhere, anytime secure...
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Description
2-bay DiskStation, Quad Core 1.4 GHz, 512MB RAM. Compact, quiet, and energy-efficient storage
Secure private cloud
Anywhere, anytime secure access to all your data.
Easy sharing and syncing
Safely access and share files and media from anywhere.
Comprehensive data protection
Hardware and software engineered to protect your data — trusted by millions.
Specs
Hardware Specifications | |
CPU | |
CPU Model | Realtek RTD1619B |
CPU Quantity | 1 |
CPU Architecture | 64-bit |
CPU Frequency | 4-core 1.7 GHz |
Hardware Encryption Engine | ✔ |
Hardware Encryption Engine (AES-NI) | |
Memory | |
System Memory | 1 GB DDR4 non-ECC |
Total Memory Slots | |
Maximum Memory Capacity | |
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 | |
Drive Bays | 2 |
M.2 Drive Slots | |
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 | |
RJ-45 1GbE LAN Port | |
RJ-45 1GbE LAN Port* | 1 |
USB 3.2 Gen 1 Port* | 2 |
USB Copy | |
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. | |
File System | |
Internal Drives | Btrfs |
EXT4 | |
External Drives | Btrfs |
EXT4 | |
EXT3 | |
FAT | |
NTFS | |
HFS+ | |
exFAT | |
Notes | Btrfs file system is available from DSM 7.2-64570. |
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 | ✔ |
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) | |
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 | FCC |
CE | |
BSMI | |
VCCI | |
RCM | |
UKCA | |
EAC | |
CCC | |
KC | |
Warranty | 2-year hardware warranty, extendable to 4 years with Extended Warranty Plus |
Environment | 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 | |
Optional Accessories | 3.5" SATA HDD: HAT3300 |
Surveillance Device License Pack | |
Disk Holder: Type C | |
Antivirus by McAfee (Trial) | |
Central Management System | |
Synology Chat | ✔ |
Maximum Number of Concurrent Users | |
Document Viewer | |
Download Station | ✔ |
Maximum Concurrent Download Tasks | 80 |
SAN Manager | ✔ |
Maximum iSCSI Target Number | 10 |
Maximum LUN | 10 |
LUN Clone/Snapshot, Windows ODX | ✔ |
Notes | |
Synology MailPlus / MailPlus Server | |
Free Email Accounts | |
Maximum Number of Concurrent Users | |
Maximum Server Performance | |
Notes | |
Media Server | ✔ |
DLNA Compliance | ✔ |
Synology Photos | ✔ |
Facial Recognition | ✔ |
Snapshot Replication | ✔ |
Maximum Snapshots per Shared Folder | 256 |
Maximum of System Snapshots | 4,096 |
Notes | Snapshot Replication is available from DSM 7.2-64570. |
Surveillance Station | ✔ |
Maximum IP cam (Licenses required) | 12 (including 2 Free License) (see all supported IP cameras) |
Total FPS (H.264) | 360 FPS @ 720p (1280x720) |
360 FPS @ 1080p (1920x1080) | |
300 FPS @ 3M (2048x1536) | |
150 FPS @ 5M (2591x1944) | |
110 FPS @ 4K (3840x2160) | |
Total FPS (H.265) | 360 FPS @ 720p (1280x720) |
360 FPS @ 1080p (1920x1080) | |
360 FPS @ 3M (2048x1536) | |
350 FPS @ 5M (2591x1944) | |
200 FPS @ 4K (3840x2160) | |
Notes | Maximum IP cameras and FPS figures are tested with the device fully populated with drives and under a continuous recording setup. |
Actual system capabilities may differ depending on system configuration, drive performance, number of features enabled, and if additional workloads are present. | |
Synology Drive | ✔ |
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) |
Synology Office | ✔ |
Maximum 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 | |
Video Station | ✔ |
Virtual Machine Manager | |
Recommended Virtual Machine Instances | |
Recommended Virtual DSM Number (Licenses required) | |
Notes | |
VPN Server | ✔ |
Maximum Connections | 10 |

Synology DS223j DiskStation 2-Bay Tower NAS