Seamless integration with your mobile devices
Synology mobile applications are designed to allow quick and secure access to your data wherever you are.
Synology DiskStation DS420j Network Attached Storage Drive (Black)
Stream content to your TV
Turn your Synology NAS into a home media hub and stream your digital contents to your favorite devices such as computers, mobile devices, Samsung TV, Apple TV, Google Chromecast, and DLNA devices.
Access and sync your files seamlessly
Synology Drive provides a built-in universal portal to access your data anytime and anywhere, and synchronize all your files across platforms, including Windows, macOS, Linux, Android, and iOS. Learn more
Sync files on demand: Save the storage space and network bandwidth of your PC.
Go back in time: Easily retrieve previous versions of your shared files.
Back up your data: Protect your files as scheduled or in real-time.
Reliable and efficient backup options
Synology Hyper Backup is a reliable and multi-directional backup solution offering data deduplication and compression. You can back up from various source folders, including external USB drives, another Synology NAS, rsync servers, or from public cloud services like Google Drive or Synology C2, and protect your data against malicious attacks and encryption-based ransomware threats. Learn more
Powered by Synology DSM
Hyper Backup
Store multiple backup versions with block-level incremental data backup and cross-version deduplication.
Learn moreSurveillance Station
Intelligent and comprehensive surveillance solution to record and monitor your environment.
Learn more
- 1Status indicator
- 2LAN indicator
- 3Power button and indicator
- 4Drive status indicator
- 51GbE RJ-45 port
- 6Power port
- 7Kensington Security Slot
- 8System fan
- 9USB 3.0 port
- 10Reset button
CPU |
CPU Model | Realtek RTD1296 |
|---|---|---|
| CPU Quantity | 1 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 4-core 1.4 GHz | |
| Hardware Encryption Engine | ||
Memory |
System Memory | 1 GB DDR4 non-ECC |
| 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 | 4 |
| Compatible Drive Type* (See all supported drives) |
|
|
| Maximum Internal Raw Capacity | 64 TB (16 TB drive x 4) (Capacity may vary by RAID types) | |
| Maximum Single Volume Size* | 108 TB | |
| Hot Swappable Drive | - | |
| Notes |
|
|
External Ports |
RJ-45 1GbE LAN Port | 1 |
| USB 3.0 Port | 2 | |
File System |
Internal Drives |
|
| External Drives |
|
|
| Notes | exFAT Access is purchased separately in Package Center. | |
Appearance |
Size (Height x Width x Depth) | 184 mm x 168 mm x 230 mm |
| Weight | 2.21 kg | |
Others |
System Fan | 80 mm x 80 mm x 2 pcs |
| Fan Speed Mode |
|
|
| Brightness Adjustable Front LED Indicators | ||
| Power Recovery | ||
| Noise Level* | 20.6 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | 90 W | |
| AC Input Power Voltage | 100 V to 240 V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* | 21.71 W (Access) 7.88 W (HDD Hibernation) |
|
| British Thermal Unit | 74.08 BTU/hr (Access) 26.89 BTU/hr (HDD Hibernation) |
|
| Notes |
|
|
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 |
|
|
Warranty |
2 Years | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
Environment |
RoHS Compliant | |
Packaging Content |
|
|
