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.
64-bit 4-core 1.4 GHz
More than 112 MB/s reading and writing
RAID 1 protection to avoid sudden drive failure
No public-cloud subscription fees
Synology's comprehensive multi-version backup solution protects your digital assets on computers (Windows/Mac) and mobile phones (Android/iOS) against malicious attacks, including the rising encryption-based ransomware threats.
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.
SHR maximizes the data capacity of your RAID when different size HDDs are used. Calculate your RAID needs.
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.
Add new disks on the fly in Storage Manager with a simple click. Learn more about SHR.
While creating a volume, choose to plan ahead and leave empty or unallocated space for future use.
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.
Store multiple backup versions with block-level incremental data backup and cross-version deduplication.
Award-winning operating system with an intuitive user interface and powerful capabilities.
Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.
Save additional investment by integrating various network services, web/mail services, management applications into your NAS.
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Hardware Specifications
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CPU
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CPU
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CPU Model | Realtek RTD1296 |
| CPU Quantity | 1 | |
| CPU Cores | 4 | |
| CPU Threads | 4 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 1.4 GHz | |
| Hardware Encryption Engine | ||
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Memory
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Memory
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System Memory | 512 MB DDR4 non-ECC |
| Notes | Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and performance. | |
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Storage
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Storage
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Drive Bays | 2 |
| Drive Type (See all supported drives) |
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| Hot Swappable Drive* | - | |
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External Ports
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External Ports
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RJ-45 1GbE LAN Port | 1 |
| USB 3.2 Gen 1 Port | 2 | |
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Appearance
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Appearance
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Size (Height x Width x Depth) | 165 mm x 100 mm x 225.5 mm |
| Weight | 0.88 kg | |
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Others
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Others
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System Fan | 92 mm x 92 mm x 1 pcs |
| Fan Speed Mode |
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| 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 watts | |
| AC Input Power Voltage | 100V to 240V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption |
12.46 watts (Access) 5.06 watts (HDD Hibernation) |
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| British Thermal Unit |
45.52 BTU/hr (Access) 17.27 BTU/hr (HDD Hibernation) |
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| Notes |
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Temperature
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Temperature
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Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) | |
| Operating Humidity | 8% to 80% RH | |
| Storage Humidity | 5% to 95% RH | |
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Certification
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Certification
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Warranty
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Warranty
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2 Years | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
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Environment
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Environment
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RoHS Compliant | |
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Packaging Content
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Packaging Content
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Optional Accessories
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Optional Accessories
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Compatibility
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Compatibility
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Synology Compatibility List | |
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DSM Specifications
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| Maximum Single Volume Size | 108 TB | |
| Maximum Internal Volume Number | 64 | |
| Supported RAID Type |
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| RAID Migration |
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| Volume Expansion with Larger HDDs |
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| Notes |
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| Internal Drives |
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| External Drives |
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| File Protocol |
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| 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. | |
| Maximum Local User Accounts | 1,024 | |
| Maximum Local Groups | 256 | |
| Maximum Shared Folder | 256 | |
| Maximum Shared Folder Sync Tasks | 2 | |
| Folder and Package Backup | ||
| Syslog Events per Second | 200 | |
| Supported Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV | |
| Supported Browsers |
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| 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. | |
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Add-on Packages view the complete package list
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Download Station
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Download Station
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Maximum Concurrent Download Tasks | 50 |
| Maximum iSCSI Target Number | 10 | |
| Maximum LUN | 10 | |
| DLNA Compliance | ||
| Facial Recognition | ||
| Default Licenses | 2 (Additional cameras require purchase of licenses) | |
| Maximum IP Cameras and Total FPS (H.264) |
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| Maximum IP Cameras and Total FPS (H.265) |
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| Notes |
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| Recommended Number of Concurrent Sync Clients | 200 | |
| Maximum 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) | |
| Notes |
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| Maximum Number of Users | 200 | |
| Notes | Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM | |
| Maximum Connections | 10 | |
