DS420j | DiskStation DS420j

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.

CPU

64-bit 4-core 1.4 GHz

Performance

Over 112 MB/s encrypted reading and writing1

Storage

Maximum 64 TB raw capacity

Energy-saving

7.88 W in hibernation mode

DiskStation DS420j

Hardware Specs

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
	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	100V to 240V 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-year hardware warranty, extendable to 4 years with Extended Warranty Plus
	Notes	Availability varies by region. Before purchasing, please visit the official web pages of EW201/202 and Extended Warranty Plus for a list of eligible regions. 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

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