CPU

CPU Model

• Realtek RTD1296

CPU Architecture

• 64-bit

CPU Frequency

• Quad Core 1.4 GHz

Hardware Encryption Engine

• Yes

Memory

System Memory

• 1GB DDR4

Note:

• 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 (un-populated)

Compatible Drive Type

• 3.5″ SATA HDD
• 2.5″ SATA HDD
• 2.5″ SATA SSD

Maximum Internal Raw Capacity

• 64TB (16TB drive x 4) (Capacity may vary by RAID types)

Maximum Single Volume Size

• 108TB

Note:

• “Compatible drive type” indicates the 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

RJ45 1GbE LAN Port

• 1

USB 3.0 Port

• 2

File System

Internal Drives

• EXT4

External Drives

• EXT4
• EXT3
• FAT
• NTFS
• HFS+
• exFAT
  • Note: exFAT Access is purchased separately in Package Centre.

Appearance

Size (H x W x D)

• 184 x 168 x 230 mm

Weight

• 2.21 kg

Others

System Fan

• 80 mm x 80 mm (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)

Note:

• Power consumption is measured when it’s 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 metre away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75ºC; Humidity: 58.2-61.8%

Temperature

Operating Temperature

• 0ºC to 40ºC (32ºF to 104ºF)

Storage Temperature

• -20ºC to 60ºC (-5ºF to 140ºF)

Relative Humidity

• 5% to 95% RH

Certification

• FCC
• CE
• EAC
• BSMI
• VCCI
• CCC
• RCM

Environment

• RoHS Compliant

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 an 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 Centre

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
• German
• French
• Italian
• Spanish
• Danish
• Norwegian
• Swedish
• Dutch
• Russian
• Polish
• Hungarian
• Portuguese (Brazil)
• Portuguese (Europe)
• Turkish
• Czech
• Thai
• Japanese
• Korean
• Chinese (Traditional)
• Chinese (Simplified)

Add-on Packages

Synology Chat

Maximum Users

• 10

Note:

• 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)

• Yes

Media Server

DLNA Compliance

• Yes

Moments

Facial Recognition

• Yes

Subject Recognition

• Yes

Surveillance Station

• Maximum IP cam (licences required)
  • 16 (including 2 free licences)

Total FPS (H.264)

• 480 FPS @ 720p (1280×720)
• 288 FPS @ 1080p (1920×1080)
• 150 FPS @ 3M (2048×1536)
• 100 FPS @ 5M (2591×1944)
• 70 FPS @ 4K (3840×2160)

Total FPS (H.265)

• 480 FPS @ 720p (1280×720)
• 384 FPS @ 1080p (1920×1080)
• 256 FPS @ 3M (2048×1536)
• 160 FPS @ 5M (2591×1944)
• 100 FPS @ 4K (3840×2160)

Total FPS (MJPEG)

• 240 FPS @ 720p (1280×720)
• 150 FPS @ 1080p (1920×1080)
• 100 FPS @ 3M (2048×1536)
• 60 FPS @ 5M (2591×1944)

Note:

• 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.

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)

Note:

• 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

Note:

• 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

VPN Server

Maximum Connections

• 10

Package Contents

• 1 x Synology DS420j Enclosure
• 1 x Accessory Pack
• 1 x AC Power Adapter
• 1 x AC Power Cord
• 1 x RJ45 LAN Cable
• 1 x Quick Installation Guide