DS420j - Synology DiskStation DS420j

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 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

Notes

exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased 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

• 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. (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

Optional Accessories

• VisualStation: VS360HD
• Surveillance Device License Pack