Synology DS420j

Synology NAS

DiskStation DS420j

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.

Synology NAS

Features of Synology DS420j

  • Build a private cloud for your home
  • Manage your photo collections
  • Stream content to your TV
  • Seamless integration with your mobile devices
  • Access and sync your files seamlessly
  • Reliable and efficient backup options
Synology NAS

Specifications of Synology DS420j

Hardware Specifications

CPU Model Realtek RTD1296
CPU Quantity 1
CPU Architecture 64-bit
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.
Drive Bays 4
Compatible Drive Type*
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • 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.
    External Ports
    RJ-45 1GbE LAN Port 1
    USB 3.2 Gen 1 Port* 2
    Notes 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 EXT4
    External Drives
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT
  • Appearance
    Size (Height x Width x Depth) 184 mm x 168 mm x 230 mm
    Weight 2.21 kg
    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 90W
    AC Input Power Voltage 100V to 240V AC
    Power Frequency
  • 21.71 W (Access)
  • 7.88 W (HDD Hibernation)
  • Power Consumption*
  • 12.46 W (Access)
  • 5.06 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
  • EAC
  • CCC
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • Warranty 2 Years
    Notes The warranty period starts from the purchase date as stated on your purchase receipt.
    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
  • VisualStation: VS960HD/VS360HD
  • Surveillance Device License Pack

  • For additional information, download the Synology DS420j datasheet.

    Synology NAS

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