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Synology DiskStation DS420j

$461.48

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4-bay DiskStation, Quad Core 1.4 GHz, 1GB RAMAn essential entry-level NAS for your home Build a private cloud for your home DS420j is a 4-bay desktop NAS designed for home data... Read more

Synology DiskStation DS420j Synology DiskStation DS420j
$461.48
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Vendor: SynologySKU: 4787773N/ATags: Network Access Storage, Storage
Description
4-bay DiskStation, Quad Core 1.4 GHz, 1GB RAM

An essential entry-level NAS for your home

Build a private cloud for your home

DS420j is a 4-bay desktop NAS designed for home data backup, file syncing, and sharing. Supporting up to 64 TB raw capacity, you can easily centralize all your multimedia collections.

  • CPU 64-bit 4-core 1.4 GHz
  • Performance Over 112MB/s encrypted reading and writing¹
  • Storage Maximum 64 TB Raw Capacity
  • Energy-Saving 7.88 W in hibernation mode

 

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. Learn more

 

Stream content to your TV

Turn your Synology NAS into a home media hub and stream your digital contents 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.

  • DS audio
  • DS photo
  • DS video

 

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. Learn more

  • 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 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. Learn more

 

¹ Performance figures may vary depending on environment, usage, and configuration.

Hardware Specifications
Hardware Specs
CPU CPU Model Realtek RTD 1296
CPU Quantity 1
CPU Architecture 64-bit
CPU Frequency 4-core 1.4 GHz
Hardware Encryption Engine Yes
Hardware Transcoding Engine 10-bit H.265 (HEVC), MPEG-4 Part 2, MPEG-2, VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 60
Memory System Memory¹ 1 GB DDR4 non-ECC
Storage Drive Bays 4
Compatible Drive Type²
(See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
    		•
    Maximum Single Volume Size³ 108 TB
    Hot Swappable Drive -
    External Ports RJ-45 1GbE LAN Port 1
    USB 3.2 Gen 1 Port 2
    File System Internal Drives
  • EXT4
    		•
    External Drives
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT (Purchased Separately)
    		•
    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 Level⁴ 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 Consumption⁵ 21.71 W (Access)
    7.88 W (HDD Hibernation)
    British Thermal Unit 74.08 BTU/hr (Access)
    26.89 BTU/hr (HDD Hibernation)
    Temperature Operating Temperature 0°C to 40°C (40°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

    ¹ 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.

    ² "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.

    ³ Storage Pool and volume creation require all drives to be listed as compatible on the device model's compatibility list.

    ⁴ 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%.

    ⁵ Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).

    Notes:

    • Model specifications are subject to change without prior notice.
    • The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
    • The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
    • If usage requirements exceed the specifications above, please contact our regional partners for professional advice.
    Software Specifications
    DSM Specs
    Storage Management Maximum Internal Volume Number 64

    		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 Services¹ 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
  • Google Chrome
  • Firefox
  • Microsoft Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Google Chrome (Android 6.0 onwards)
    		•

    		Supported Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文

    ¹ The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.



    Add-on Package
    Synology Chat Maximum Users² 10
    Download Station Maximum Concurrent Download Tasks 80
    exFAT Access (Optional) Yes
    iSCSI Manager
    		 Maximum iSCSI Target Number
    		 10
    Maximum iSCSI LUN 10
    Media Server DLNA Compliance Yes
    Moments Facial Recognition Yes
    Subject Recognition Yes
    Surveillance Station⁴
    		 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)
    Synology Drive⁵ 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)
    Synology Office⁶
    		 Maximum Users 200
    Video Station Video Transcoding Group 2(See more)
    VPN Server Maximum Connections 10

    ² The number of concurrent HTTP connections for Synology Chat was configured to the maximum.

    ³

  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time.
  • The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Cloud Station Server service. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.

    • ⁴

  • 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).

    • ⁵

  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • EXT4 file system and non-encrypted shared folders were used during the aforementioned testing.

    • ⁶

  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM

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    Nordcom II, Singapore 757044

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    Synology DiskStation DS420j

    $461.48