An essential entry-level NAS for your home
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Build a private cloud for your home
DS420j is a 4-bay desktop NAS designed for home data backup, file syncing, and sharing. You can easily centralize all your multimedia collections with its support of up to 64 TB raw capacity.
Over 112 MB/s sequential reading
64-bit 4-core 1.4 GHz
Maximum 64 TB raw capacity
Seamless integration with your mobile devices
Synology mobile applications are designed to allow quick and secure access to your data wherever you are.
Stream content to your TV
Turn your Synology NAS into a home media hub and stream your digital contents to computers, mobile devices, Samsung TV, Apple TV, Google Chromecast, and DLNA devices.
Centralized backup solution for your digital devices
Synology's comprehensive multi-version backup solution protects your digital assets on computers (Windows/Mac) and mobile phones (Android/iOS) against malicious attacks, including the rising encryption-based ransomware threats.
Easy file access with QuickConnect
Access files on your Synology NAS over the Internet without the hassle of setting up port forwarding rules, DDNS, or other complicated network settings. QuickConnect allows you to connect via a secure, customizable address, so that you can instantly access media and work files on any Internet-connected device at no additional charge.
Powerful built-in file management and sharing services.
Complete multimedia solution for management, streaming, and playback.
Store multiple backup versions with block-level incremental data backup and cross-version deduplication.
A versatile solution for file management and synchronization.
Comprehensive built-in security tools are constantly updated to protect your devices against evolving threats.
Complete surveillance solution for recording, monitoring, and management.
|DiskStation DS420j Hardware Specifications|
|CPU Model||Realtek RTD1296|
|CPU Frequency||4-core 1.4 GHz|
|Hardware Encryption Engine|
|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.|
|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||-|
|RJ-45 1GbE LAN Port||1|
|USB 3.0 Port||2|
|Notes||exFAT Access is purchased separately in Package Center.|
|Size (Height x Width x Depth)||184 mm x 168 mm x 230 mm|
|System Fan||80 mm x 80 mm x 2 pcs|
|Fan Speed Mode||
|Brightness Adjustable Front LED Indicators|
|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)
|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|
|Notes||The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)|
Download the Synology DiskStation DS420j Datasheet (PDF).
- Pricing and product availability subject to change without notice.