Synology DiskStation DS220j (2-bay)

An easy-to-use private cloud for everyone

DS220j is an entry-level 2-bay NAS designed for home and personal users to store and share photos, videos, and documents. The private cloud solution is powered by the award-winning DiskStation Manager (DSM) OS, providing an intuitive user interface and safe data protection approaches for easy digital asset backups from computers and mobile devices at no additional cost.

 

SKU: CS0302BB13K Category:

Description

Centralized backup solution for your digital devices

Synology’s comprehensive multi-version backup solutions protect your digital assets on computers (Windows/Mac) and mobile phones (Android/iOS) against malicious attacks, including the rising threat from encryption-based ransomware.

Stream content to your TV

Turn your Synology NAS into a home media hub and stream your digital content to your favorite electronic devices, including computers, mobile devices, Samsung TV, Apple TV, Google Chromecast, and DLNA devices.

Synology Hybrid RAID (SHR) technology

Storage management is easy with Synology Hybrid RAID (SHR) technology. SHR is an automated RAID management system that allows you to easily create and expand storage volumes and migrate RAID types without requiring details on the RAID setup. SHR provides 1-disk redundancy to safeguard your data in case of drive failures.

Cost-effective

SHR maximizes the data capacity of your RAID when different size HDDs are used. Calculate your RAID needs.

Easy Management

For new users with limited technical knowledge who want to protect their data using RAID technology, a convenient installation wizard will guide you through all the steps during your first installation.

Scalability

Add new disks on the fly in Storage Manager with a simple click. Learn more about SHR.

Flexibility

While creating a volume, choose to plan ahead and leave empty or unallocated space for future use.

Seamless integration with your mobile devices

Synology mobile applications are designed to give you quick and secure access to your data wherever you are.

Powered by Synology DiskStation Manager

File Server/Management

File Server/Management

Powerful built-in file management and sharing services.

Learn more

Multimedia

Multimedia

Complete multimedia solution for management, streaming, and playback.

Learn more

Hyper Backup

Hyper Backup

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

Learn more

DSM UI

DSM UI

Award-winning operating system with an intuitive user interface and powerful capabilities.

Learn more

Security

Security

Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.

Learn more

All-in-one server

All-in-one server

Save additional investment by integrating various network services, web/mail services, management applications into your NAS.

Learn more

CPU

CPU Model Realtek RTD1296
CPU Quantity 1
CPU Architecture 64-bit
CPU Frequency 4-core 1.4 GHz
Hardware Encryption Engine

Memory

System Memory 512 MB 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 2
Compatible Drive Type* (See all supported drives)
  • 3.5″ SATA HDD
  • 2.5″ SATA HDD (with optional 2.5″ Disk Holder)
  • 2.5″ SATA SSD (with optional 2.5″ Disk Holder)
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.

External Ports

RJ-45 1GbE LAN Port 1
USB 3.2 Gen 1 Port* 2
Notes The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.

File System

Internal Drives
  • EXT4
External Drives
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT
Notes exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center.

Appearance

Size (Height x Width x Depth) 165 mm x 100 mm x 225.5 mm
Weight 0.88 kg

Others

System Fan 92 mm x 92 mm x 1 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Low-power Mode
Brightness Adjustable Front LED Indicators
Power Recovery
Noise Level* 18.2 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
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* 12.46 W (Access)
5.06 W (HDD Hibernation)
British Thermal Unit 45.52 BTU/hr (Access)
17.27 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

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

Warranty

2 Years
Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)

Environment

RoHS Compliant

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

  • VisualStation: VS360HD
  • Surveillance Device License Pack
  • Disk Holder: Type C

DSM Specifications

Storage Management

Maximum Single Volume Size* 108 TB
Maximum Internal Volume Number 64
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 a HDD Synology Hybrid RAID
Notes Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.

File Services

File Protocol SMB/AFP/NFS/FTP/WebDAV
Maximum Concurrent SMB/AFP/FTP Connections 100
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Notes 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.

Account & Shared Folder

Maximum Local User Accounts 1,024
Maximum Local Groups 256
Maximum Shared Folder 256
Maximum Shared Folder Sync Tasks 2

Log Center

Syslog Events per Second 200

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
  • Safari
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
Notes For an updated list of supported browser versions, check the DSM Technical Specifications.

Add-on Packages view the complete package list

Synology Chat

Maximum Users 10
Notes The number of concurrent HTTP connections for Synology Chat was configured to the maximum.

Download Station

Maximum Concurrent Download Tasks 50

SAN Manager

Maximum iSCSI Target Number 10
Maximum LUN 10
Notes iSCSI Manager has been renamed to SAN Manager in DSM 7.0.

Media Server

DLNA Compliance

Synology Photos

Facial Recognition
Notes Photo Station and Synology Moments are succeeded by Synology Photos in DSM 7.0. For a features comparison, check this article.

Surveillance Station

Maximum IP cam (Licenses required) 12 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264) 360 FPS @ 720p (1280×720)
110 FPS @ 1080p (1920×1080)
70 FPS @ 3M (2048×1536)
40 FPS @ 5M (2591×1944)
30 FPS @ 4K (3840×2160)
Total FPS (H.265) 360 FPS @ 720p (1280×720)
240 FPS @ 1080p (1920×1080)
110 FPS @ 3M (2048×1536)
70 FPS @ 5M (2591×1944)
40 FPS @ 4K (3840×2160)
Total FPS (MJPEG) 80 FPS @ 720p (1280×720)
50 FPS @ 1080p (1920×1080)
40 FPS @ 3M (2048×1536)
20 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 200 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes
  • 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.

Synology Office

Maximum Users 200
Notes
  • 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

Video Station

Video Transcoding Group 2 (See more)

VPN Server

Maximum Connections 10

Notes:

  1. Model specifications are subject to change without prior notice.
  2. 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.
  3. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
  4. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.

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