Hardware Specifications

CPU

CPU Model

• Intel Celeron J4025

CPU Architecture

• 64-bit

CPU Frequency

• 2-core 2.0 (base) / 2.9 (burst) GHz

Hardware Encryption Engine (AES-NI)

• Yes

Memory

System Memory

• 2 GB DDR4 non-ECC

Total Memory Slots

• 1

Maximum Memory Capacity

• 6 GB (2 GB + 4 GB)

Notes

• Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
• 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

• Bundled with 8TB of storage capacity (includes 2 x 4TB Seagate IronWolf HDDs).

Compatible Drive Type

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

Maximum Internal Raw Capacity

• 32 TB (16 TB drive x 2) (Capacity may vary by RAID types)

Maximum Single Volume Size

• 108 TB

Hot Swappable Drive

• Yes

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.
• Each internal volume (may consist of multiple drives) is expandable up to 108TB.

External Ports

RJ45 1GbE LAN Port

• 2 (with Link Aggregation / Failover support)

USB 3.0 Port

• 2

USB / SD Copy

• Yes

File System

Internal Drives

• Btrfs
• EXT4

External Drives

• Btrfs
• EXT4
• EXT3
• FAT
• NTFS
• HFS+
• exFAT

Notes

• exFAT Access is purchased separately in Package Centre.

Appearance

Dimensions (H x W x D)

• 165 x 108 x 232.2 mm

Weight

• 1.30 kg

Others

System Fan

• 92 mm x 92 mm x 1 pcs

Fan Speed Mode

• Full-Speed Mode
• Cool Mode
• Quiet Mode

Brightness Adjustable Front LED Indicators

• Yes

Power Recovery

• Yes

Noise Level

• 19.3 dB(A)

Scheduled Power On / Off

• Yes

Wake on LAN / WAN

• Yes

Power Supply Unit / Adapter

• 60 W

AC Input Power Voltage

• 100 V to 240 V AC

Power Frequency

• 50/60 Hz, Single Phase

Power Consumption

• 14.69 W (Access)
• 4.41 W (HDD Hibernation)

British Thermal Unit

• 50.12 BTU/hr (Access)
• 15.05 BTU/hr (HDD Hibernation)

Notes

• Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s) – sold separately.
• Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) – sold separately – 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: 24.25-25.75°C; 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

Certification

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

Environment

• RoHS Compliant

DSM Specifications

Storage Management

Maximum Internal Volume Number

• 64

Maximum iSCSI Target Number

• 128

Maximum iSCSI LUN

• 256

iSCSI LUN Clone/Snapshot, Windows ODX

• Yes

SSD TRIM

• Yes

Supported RAID Type

• Synology Hybrid RAID
• Basic
• JBOD
• RAID 0
• RAID 1

RAID Migration

• Basic to RAID 1

Volume Expansion with Larger HDDs

• Synology Hybrid RAID
• RAID 1

Volume Expansion by Adding an HDD

• Synology Hybrid RAID

File Services

File Protocol

• CIFS/AFP/NFS/FTP/WebDAV

Maximum Concurrent CIFS/AFP/FTP Connections

• 500

Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion)

• 1,500

Windows Access Control List (ACL) Integration

• Yes

NFS Kerberos Authentication

• Yes

Account & Shared Folder

Maximum Local User Accounts

• 2,048

Maximum Local Groups

• 256

Maximum Shared Folder

• 256

Maximum Shared Folder Sync Tasks

• 8

High Availability

Synology High Availability

• Yes

Log Centre

Syslog Events per Second

• 400

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

Antivirus by McAfee (Trial)

• Yes

Central Management System

• Yes

Synology Chat

Maximum Users

• 1,000

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.
• For tested models with expandable memory, the maximum amount of RAM was installed.

Document Viewer

• Yes

Download Station

Maximum Concurrent Download Tasks

• 80

exFAT Access (Optional)

• Yes

Synology MailPlus / MailPlus Server

Free Email Accounts

• 5 (Licences required for additional accounts)

Maximum Number of Concurrent Users

• 50

Maximum Server Performance

• 936,000 emails per day, approx. 28GB

Notes

• The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
• For tested models with expandable memory, the maximum amount of RAM was installed.
• The performance of the mail system will slightly decrease in high-availability mode due to data synchronisation between the two servers.
• Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).

Media Server

DLNA Compliance

• Yes

Moments

Facial Recognition

• Yes

Subject Recognition

• Yes

Auto Colour & Rotate

• Yes

Moments Select

• Yes

Snapshot Replication

Maximum Snapshots per Shared Folder

• 1,024

Maximum of System Snapshots

• 65,536

Surveillance Station

Maximum IP cam (Licences required)

• 25 (including 2 Free Licence)

Total FPS (H.264)

• 750 FPS @ 720p (1280×720)
• 700 FPS @ 1080p (1920×1080)
• 350 FPS @ 3M (2048×1536)
• 240 FPS @ 5M (2591×1944)
• 120 FPS @ 4K (3840×2160)

Total FPS (H.265)

• 750 FPS @ 720p (1280×720)
• 750 FPS @ 1080p (1920×1080)
• 500 FPS @ 3M (2048×1536)
• 250 FPS @ 5M (2591×1944)
• 200 FPS @ 4K (3840×2160)

Total FPS (MJPEG)

• 450 FPS @ 720p (1280×720)
• 250 FPS @ 1080p (1920×1080)
• 160 FPS @ 3M (2048×1536)
• 130 FPS @ 5M (2591×1944)

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

• 500,000 (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

• 350 (the number of connections that can be maintained when the recommended number of hosted files was reached)

Notes

• For tested models with expandable memory, the maximum amount of RAM was installed.
• Exceeding the limits above may result in longer response time in file operations.
• Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.

Synology Office

Maximum Users

• 600

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.
• For tested models with expandable memory, the maximum amount of RAM was installed.
• Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM

Video Station

• Yes

Virtual Machine Manager

Recommended Virtual Machine Instances

• 2

Recommended Virtual DSM Number (Licences required)

• 2 (including 1 Free Licence)

Notes

• The specifications vary depending on system configuration and memory size.

VPN Server

Maximum Connections

• 30

Package

Package Contents

• 1 x Synology DS220+
• 2 x Seagate IronWolf Drives
• 1 x Accessory Pack
• 1 x AC Power Adapter
• 1 x AC Power Cord
• 2 x RJ45 LAN Cable
• 1 x Quick Installation Guide