Synology DiskStation DS420j 4-Bay NAS Enclosure

BH #SYDS420J • MFR #DS420J
Synology
Synology DiskStation DS420j 4-Bay NAS Enclosure
Key Features
  • 4 x 3.5/2.5" SATA HDD/SSD Drive Bays
  • 1.4 GHz Realtek RTD1296 Quad-Core
  • 1GB of DDR4 RAM
  • 1 x Gigabit Ethernet Port
Designed for home users' data backup, file syncing, and file sharing, the DiskStation DS420j 4-Bay NAS Enclosure from Synology supports various networking protocols, multiple RAID configurations, and many add-on packages, thus enabling cross-platform file synchronization and sharing on a private cloud. It will also let you centralize your multimedia collections and comes equipped with four drive bays that can support both 3.5" and 2.5" SATA hard drives and solid-state drives. The DS420j runs on Synology DiskStation Manager (DSM) OS, which is a browser-based operating system which helps to simplify managing your Synology NAS. Its CPU is a 1.4 GHz Realtek RTD1296 Quad-Core that runs in 64-bit mode and its 1GB of DDR4 RAM allows frequently-used files and applications to be quickly accessed. The NAS can achieve encrypted read and write speeds of over 112 MB/s and features two USB 3.0 Type-A ports, both of which allow it to be connected to your Windows or Mac system, and internet connectivity is achieved using the Gigabit Ethernet port.
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Synology DS420j External HDD/SSD Overview

Designed for home users' data backup, file syncing, and file sharing, the DiskStation DS420j 4-Bay NAS Enclosure from Synology supports various networking protocols, multiple RAID configurations, and many add-on packages, thus enabling cross-platform file synchronization and sharing on a private cloud. It will also let you centralize your multimedia collections and comes equipped with four drive bays that can support both 3.5" and 2.5" SATA hard drives and solid-state drives. The DS420j runs on Synology DiskStation Manager (DSM) OS, which is a browser-based operating system which helps to simplify managing your Synology NAS. Its CPU is a 1.4 GHz Realtek RTD1296 Quad-Core that runs in 64-bit mode and its 1GB of DDR4 RAM allows frequently-used files and applications to be quickly accessed. The NAS can achieve encrypted read and write speeds of over 112 MB/s and features two USB 3.0 Type-A ports, both of which allow it to be connected to your Windows or Mac system, and internet connectivity is achieved using the Gigabit Ethernet port.

Using the integrated media server on the DS420j, you can stream digital multimedia content from the DiskStation to media devices that include computers, mobile devices, Samsung TV, Apple TV, Google Chromecast, and DLNA devices. You'll also be able to use Synology's mobile apps, such as DS audio, DS Photo, and DS video to access your data from almost anywhere.

Another function served by the DS420j is providing reliable and efficient backup options. Synology's Hyper Backup is a reliable and multi-directional backup solution offering data deduplication and compression. You can back up from various source folders, including external USB drives, another Synology NAS, rsync servers, or from public cloud services like Google Drive or Synology C2, and protect your data against malicious attacks and encryption-based ransomware threats. Also supported are a variety of RAID modes, including RAID 0, 1, 5, 6, 10, Basic, and Synology Hybrid, each of which provides performance, data redundancy, or a combination of both. For those who do not require RAID support, JBOD is also supported.

The DS420j is engineered to be energy efficient. Not only does it offer dual 80mm fans to help keep the system running cool at all times, its noise dampening design of 20.6 dBA makes for quiet operation. The server supports numerous scheduled power on / off cycles and hard drive hibernation to further minimize power consumption and operation expenses.

The Synology DiskStation DS420j 4-Bay NAS Enclosure operates on 100-240 VAC at 50/60 Hz and includes an accessory pack, an AC power adapter, an AC power cord, and an Ethernet cable.

General Features
Manage Your Photo Collections
Smartly organize your photos with Synology Moments, a modern, AI-enabled photo management application that allows you to preserve your precious memories effortlessly.
Stream Content to Your TV
Turn your Synology NAS into a home media hub and stream your digital content to your favorite devices such as computers, mobile devices, Samsung TV, Apple TV, Google Chromecast, and DLNA devices.
Seamless Integration with Your Mobile Devices
Synology mobile applications are designed to allow quick and secure access to your data from virtually anywhere.
Cross-Platform File Syncing and Sharing
Synology Drive allows you to sync files across Windows, macOS, Linux, and mobile devices, keeping everything up-to-date. Sync files on demand to save storage space and network bandwidth on your system, go back in time to retrieve previous versions of your shared files, and back up your data to protect your files as scheduled or in real time.
Reliable and Efficient Backup Options
Synology Hyper Backup is a reliable and multi-directional backup solution offering data deduplication and compression. You can back up from various source folders, including external USB drives, another Synology NAS, rsync servers, or from public cloud services like Google Drive or Synology C2, and protect your data against malicious attacks and encryption-based ransomware threats.
Powered by Synology DSM
Multimedia
Complete multimedia solution for management, streaming, and playback.

Desktop Backup
Simplified backup solution for your Mac, PC, and mobile devices.

File Server/Management
Power built-in file management and sharing services.

Synology Drive
A versatile solution for file management and synchronization.

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

Surveillance Station
Complete surveillance solution for recording, monitoring, and management.

Synology DS420j External HDD/SSD Specs

Key Specs
Number of Bays
4 x 2.5"/3.5"
Inputs/Outputs
1 x RJ45 (Gigabit Ethernet)
2 x USB Type-A (USB 3.1 / USB 3.2 Gen 1 (5 Gb/s))
Compatible Drive Interface
SATA (Unspecified Version)
RAID
RAID 0, 1, 10, 5, 6, JBOD, Synology Hybrid
Computing
Total Installed Memory
1 GB DDR4
General
Number of Bays
4 x 2.5"/3.5"
Inputs/Outputs
1 x RJ45 (Gigabit Ethernet)
2 x USB Type-A (USB 3.1 / USB 3.2 Gen 1 (5 Gb/s))
Compatible Drive Interface
SATA (Unspecified Version)
Media Card Slots
No
Form Factor
Desktop
RAID
RAID 0, 1, 10, 5, 6, JBOD, Synology Hybrid
Wake on LAN
Yes
Networking
Supported Protocols
AFP
CIFS
CalDAV
FTP
HTTP
HTTPS
L2TP/IPSec
NFS
OpenVPN
PPTP
SMB
SNMP
SSH
Telnet
WebDAV
iSCSI
iSCSI LUN
10
iSCSI Target
10
Max Concurrent Connections
100
Max Folders
256
Max Sync Tasks
4
Max Groups
256
Max User Accounts
1024
Max Volume Number
64
Max Cameras Supported
16
Software
Supported File Systems
Internal: EXT4
External: EXT3, EXT4, FAT, HFS+, NTFS, exFAT
OS Compatibility
Windows 7 or Later
macOS 10.11 or Later
*As of February, 2020: Check with manufacturer for the most up-to-date compatibility
Supported Browsers
Chrome, Edge, Firefox, Internet Explorer, Safari
Supported Languages
Brazilian Portuguese
Czech
Danish
Dutch
English
French
German
Hungarian
Italian
Japanese
Korean
Norwegian
Polish
Portuguese
Russian
Simplified Chinese
Spanish
Swedish
Thai
Traditional Chinese
Security
VPN Server Connections
10
Electrical
AC Input Power
100 to 240 VAC, 50 / 60 Hz
Power Source
AC Adapter
Power Consumption
21.71 W (Typical)
7.88 W (Standby)
PSU Wattage
1 x 90 W
Environmental
Operating Temperature
32 to 104°F / 0 to 40°C
Operating Humidity
5 to 95%
Storage Temperature
-5 to 140°F / -20 to 60°C
Certifications
BSMI, CCC, CE, EAC, FCC, RCM, RoHS, VCCI
*as per Manufacturer
Physical
Status Monitoring
LED Indicator
Cooling
2 x 80 mm Fans
Noise Level
20.6 dBA
Dimensions
9.06 x 7.24 x 6.61" / 230 x 184 x 168 mm
Weight
4.9 lb / 2.2 kg
Packaging Info
Package Weight
8.5 lb
Box Dimensions (LxWxH)
23 x 20.5 x 11"

Synology DS420j External HDD/SSD Reviews

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