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DiskStation DS420j
An essential entry-level NAS for your home

Synology Products
Synology DiskStation
Synology DiskStation DS420j 4 Bay SAN/NAS Storage System
#DS420j
Our Price: $299.99
Synology Recommended Bundles
8TB Bundle
DS420j (1GB RAM) 8TB Capacity
Includes:
  • Synology DiskStation DS420j 4 Bay SAN/NAS Storage System, 1GB RAM
  • Seagate Ironwolf 2TB SATA HDD 3.5 in., 8TB Capacity (QTY 4 X 2TB)
#DS420j-4-2000
Our Price: $647.95
Contact Us for the lowest pricing!
16TB Bundle
DS420j (1GB RAM) 16TB Capacity
Includes:
  • Synology DiskStation DS420j 4 Bay SAN/NAS Storage System, 1GB RAM
  • Seagate Ironwolf 4TB SATA HDD 3.5 in., 16TB Capacity (QTY 4 X 4TB)
#DS420j-4-4000
Our Price: $743.95
Contact Us for the lowest pricing!
24TB Bundle
DS420j (1GB RAM) 24TB Capacity
Includes:
  • Synology DiskStation DS420j 4 Bay SAN/NAS Storage System, 1GB RAM
  • Seagate Ironwolf 6TB SATA HDD 3.5 in., 24TB Capacity (QTY 4 X 6TB)
#DS420j-4-6000
Our Price: $951.95
Contact Us for the lowest pricing!
32TB Bundle
DS420j (1GB RAM) 32TB Capacity
Includes:
  • Synology DiskStation DS420j 4 Bay SAN/NAS Storage System, 1GB RAM
  • Seagate Ironwolf 8TB SATA HDD 3.5 in., 32TB Capacity (QTY 4 X 8TB)
#DS420j-4-8000
Our Price: $1,163.95
Contact Us for the lowest pricing!
40TB Bundle
DS420j (1GB RAM) 40TB Capacity
Includes:
  • Synology DiskStation DS420j 4 Bay SAN/NAS Storage System, 1GB RAM
  • Seagate Ironwolf 10TB SATA HDD 3.5 in., 40TB Capacity (QTY 4 X 10TB)
#DS420j-4-10000
Our Price: $1,475.95
Contact Us for the lowest pricing!

Want to build a custom bundle? Contact us!

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Overview:

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.


Fast Performance

Over 112 MB/s sequential reading

CPU

64-bit 4-core 1.4 GHz

Storage

Maximum 64 TB raw capacity


Mobile Device Integration

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.

Centralized backup

Quick Connect

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.

Features:

File Server Management

File Server/Management

Powerful built-in file management and sharing services.

Multimedia

Multimedia

Complete multimedia solution for management, streaming, and playback.

Hyper Backup

Hyper Backup/p>

Store multiple backup versions with block-level incremental data backup and cross-version deduplication.

Synology Drive

Synology Drive

A versatile solution for file management and synchronization.

Security

Security

Comprehensive built-in security tools are constantly updated to protect your devices against evolving threats.

Surveillance Station

Surveillance Station

Complete surveillance solution for recording, monitoring, and management.


Physical Features:

Physical Features

Specifications:


DiskStation DS420j Hardware Specifications

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)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
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
  • "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.
  • The maximum single volume size is not directly related to the maximum raw capacity. (Learn more)

External Ports

RJ-45 1GbE LAN Port 1
USB 3.0 Port 2

File System

Internal Drives
  • EXT4
External Drives
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
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
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Low-power 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
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%

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
  • EAC
  • BSMI
  • VCCI
  • CCC
  • RCM

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

  • 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

Documentation:

Download the Synology DiskStation DS420j Datasheet  (PDF).

Pricing Notes:

Synology Products
Synology DiskStation
Synology DiskStation DS420j 4 Bay SAN/NAS Storage System
#DS420j
Our Price: $299.99
Synology Recommended Bundles
8TB Bundle
DS420j (1GB RAM) 8TB Capacity
Includes:
  • Synology DiskStation DS420j 4 Bay SAN/NAS Storage System, 1GB RAM
  • Seagate Ironwolf 2TB SATA HDD 3.5 in., 8TB Capacity (QTY 4 X 2TB)
#DS420j-4-2000
Our Price: $647.95
Contact Us for the lowest pricing!
16TB Bundle
DS420j (1GB RAM) 16TB Capacity
Includes:
  • Synology DiskStation DS420j 4 Bay SAN/NAS Storage System, 1GB RAM
  • Seagate Ironwolf 4TB SATA HDD 3.5 in., 16TB Capacity (QTY 4 X 4TB)
#DS420j-4-4000
Our Price: $743.95
Contact Us for the lowest pricing!
24TB Bundle
DS420j (1GB RAM) 24TB Capacity
Includes:
  • Synology DiskStation DS420j 4 Bay SAN/NAS Storage System, 1GB RAM
  • Seagate Ironwolf 6TB SATA HDD 3.5 in., 24TB Capacity (QTY 4 X 6TB)
#DS420j-4-6000
Our Price: $951.95
Contact Us for the lowest pricing!
32TB Bundle
DS420j (1GB RAM) 32TB Capacity
Includes:
  • Synology DiskStation DS420j 4 Bay SAN/NAS Storage System, 1GB RAM
  • Seagate Ironwolf 8TB SATA HDD 3.5 in., 32TB Capacity (QTY 4 X 8TB)
#DS420j-4-8000
Our Price: $1,163.95
Contact Us for the lowest pricing!
40TB Bundle
DS420j (1GB RAM) 40TB Capacity
Includes:
  • Synology DiskStation DS420j 4 Bay SAN/NAS Storage System, 1GB RAM
  • Seagate Ironwolf 10TB SATA HDD 3.5 in., 40TB Capacity (QTY 4 X 10TB)
#DS420j-4-10000
Our Price: $1,475.95
Contact Us for the lowest pricing!