Synology DiskStation DS420j 4-Bay 1.4GHz 4-Core 64 Bit Network Attached Drive

Synology DiskStation DS420j 4-Bay, SATA3 6.0Gbps, 1.4GHz 4-Core CPU 64 Bit, 1G DDR4 NON ECC RAM, 1x RJ-45 1GbE LAN Port, 2x USB 3.0 Port, 64.0TB Max

Features:

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.

Manage your photo collections
Organize your photos intelligently with Moments, a modern, AI-enabled photo management application that lets you effortlessly preserve your precious memories.

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 wherever you are.

Access and sync your files seamlessly
Synology Drive provides a built-in universal portal to access your data anytime and anywhere, and synchronize all your files across platforms, including Windows, macOS, Linux, Android, and iOS.
Sync files on demand: Save the storage space and network bandwidth of your PC.
Go back in time: Easily retrieve previous versions of your shared files.
Back up your data: Protect your files with scheduled backups 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 data from various source folders, including external USB drives, another Synology NAS, rsync servers, or public cloud services like Google Drive or Synology C2, and protect your data against malicious attacks and encryption-based ransomware threats.

Multimedia
Complete multimedia solution for management, streaming, and playback.

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

File Server/Management
Powerful 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.

Specifications:

CPU
CPU Model Realtek RTD1296
CPU Architecture 64-bit
CPU Frequency 4-core 1.4 GHz
Hardware Encryption Engine Yes
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.
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 Yes
Power Recovery Yes
Noise Level 20.6 dB(A)
Scheduled Power On / Off Yes
Wake on LAN / WAN Yes
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
Certification FCC
CE
EAC
BSMI
VCCI
CCC
RCM
Environment
Environment RoHS Compliant
Packaging Content
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
Optional Accessories VS360HD
VS960HD
Surveillance Device License Pack
Storage Management
Maximum Internal Volume Number 64
Maximum iSCSI Target Number 10
Maximum iSCSI LUN 10
SSD TRIM Yes
Supported RAID Type Synology Hybrid RAID
Basic
JBOD
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
RAID Migration Basic to RAID 1
Basic to RAID 5
RAID 1 to RAID 5
RAID 5 to RAID 6
Volume Expansion with Larger HDDs Synology Hybrid RAID
RAID 1
RAID 5
RAID 6
RAID 10
Volume Expansion by Adding a HDD Synology Hybrid RAID
JBOD
RAID 5
Global Hot Spare Supported RAID Type Synology Hybrid RAID
RAID 1
RAID 5
File Services
File Protocol CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections 100
Windows Access Control List (ACL) Integration Yes
NFS Kerberos Authentication Yes
Account & Shared Folder
Maximum Local User Accounts 1, 024
Maximum Local Groups 256
Maximum Shared Folder 256
Maximum Shared Folder Sync Tasks 4
Log Center
Syslog Events per Second 100
General Specifications
Networking Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers Chrome
Firefox
Edge
Internet Explorer 10 onwards
Safari 10 onwards
Safari (iOS 10 onwards)
Chrome (Android 6.0 onwards)
Supported Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Russian, Polski, Magyar, Portugues do Brasil, Portugues Europeu and more
Synology Chat
Maximum Users 10
Notes The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
CPU and RAM usage were both under 80% when the number of maximum users was reached.
Download Station
Maximum Concurrent Download Tasks 80
exFAT Access (Optional)
exFAT Access (Optional) Yes
Media Server
DLNA Compliance Yes
Moments
Facial Recognition Yes
Subject Recognition Yes
Surveillance Station
Maximum IP cam (Licenses required) 16 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264) 480 FPS @ 720p (1280x720)
288 FPS @ 1080p (1920x1080)
150 FPS @ 3M (2048x1536)
100 FPS @ 5M (2591x1944)
70 FPS @ 4K (3840x2160)
Total FPS (H.265) 480 FPS @ 720p (1280x720)
384 FPS @ 1080p (1920x1080)
256 FPS @ 3M (2048x1536)
160 FPS @ 5M (2591x1944)
100 FPS @ 4K (3840x2160)
Total FPS (MJPEG) 240 FPS @ 720p (1280x720)
150 FPS @ 1080p (1920x1080)
100 FPS @ 3M (2048x1536)
60 FPS @ 5M (2591x1944)
Notes Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
The maximum channel number also includes devices installed on Virtual DSM.
Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
Synology Drive
Recommended Number of Hosted Files 100,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Recommended Number of Concurrent Sync Clients 200 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes Exceeding the limits above may result in longer response time in file operations.
EXT4 file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Maximum Users 200
Notes Multiple files were opened for testing and each file was edited by 30 users simultaneously.
CPU and RAM usage were both under 80% when the number of maximum users was reached.
Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Video Station
Video Transcoding Group 2 (See more)
VPN Server
Maximum Connections 10