Secure cloud storage
- Flexibly store up to 72 TB of data1 with 100% ownership and enjoy multi-platform access from anywhere.

Data sharing made easy
- Safely share files and media over your private cloud for easier collaboration and better productivity.

Versatile video surveillance
- Leverage intuitive surveillance tools to protect your premises and store footage from up to 30 IP cameras.

Create a private cloud hub for your data
- Import and sync data scattered across PCs, Macs, phones, and external storage devices to implement well-organized file management for your business.

Multi-device access
- Browse, access, edit, and share files securely and conveniently via desktop, mobile, or web browser platforms. Use intuitive admin tools to track and set file permissions and control access to documents, files, and other data.

On-demand sync
- Save space on your personal devices by only synchronizing the files you need from your Synology system. Pin frequently accessed files for convenient offline accessibility.

Cloud integration
- Sync your private storage servers with public cloud services such as Google Drive, Dropbox, and Microsoft OneDrive. Retain local copies of your cloud data for centralized management and data ownership.

Cross-platform sharing
- Build a private data cloud that syncs and shares files swiftly between multiple storage servers, letting everyone access the same set of data at their convenience.

CPU
- CPU Model: Realtek RTD1619B
- CPU Quantity: 1
- CPU Architecture: 64-bit
- CPU Frequency: 4-core 1.7 GHz
- Hardware Encryption Engine : Yes

Memory
- System Memory: 2 GB DDR4 non-ECC
- Notes: Synology reserves the right to replace memory modules with the same or higher frequency based on suppliers 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
- Compatible Drive Type* (See all supported drives)
* 3.5" SATA HDD
* 2.5" SATA SSD
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.

External Ports
- RJ-45 1GbE LAN Port*: 2 (with Link Aggregation / Failover support)
- USB 3.2 Gen 1 Port*: 2
- Notes
* This devices 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
* 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
* Btrfs
* EXT4
- External Drives
* Btrfs
* EXT4
* EXT3
* FAT
* NTFS
* HFS+
* exFAT

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
- 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: 100V to 240V AC
- Power Frequency: 50/60 Hz, Single Phase
- Power Consumption:
* 32.41 W (Access)
* 4.97 W (HDD Hibernation)
- British Thermal Unit:
* 110.52 BTU/hr (Access)
* 16.95 BTU/hr (HDD Hibernation)
- Notes
* For more information on how power consumption is measured, refer to this article.
* 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
- FCC
- CE
- BSMI
- VCCI
- RCM
- UKCA
- EAC
- CCC
- KC

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 2
- Quick Installation Guide X 1

Optional Accessories
- 3.5" SATA HDD: HAT5300
- 2.5" SATA SSD: SAT5210
- Surveillance Device License Pack

Software Specs
DSM Specifications
Storage Management
- Maximum Single Volume Size*: 108 TB
- 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
- Notes
* Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
* 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: 200
- Windows Access Control List (ACL) Integration: Yes
- NFS Kerberos Authentication: Yes
- 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: 4

Hybrid Share
- Maximum Hybrid Share Folders: 5

Hyper Backup
- Data & Folder Backup: Yes

Log Center
- 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
- Google Chrome
- Firefox
- Microsoft Edge
- Safari
- Supported Language: English, Deutsch, Français, Italiano, Espanol, Dansk, Norsk, Svenska, Nederlands, ???????, Polski, Magyar, Portugues do Brasil, Portugues Europeu, Türkçe, Český, ???????, ???, ???, ????, ????
- Notes: For an updated list of supported browser versions, check the DSM Technical Specifications.

Add-on Packages
- Synology Chat: Yes

Download Station
- Maximum Concurrent Download Tasks: 80

SAN Manager
- Maximum iSCSI Target Number: 128
- Maximum LUN: 256
- LUN Clone/Snapshot, Windows ODX: Yes

Media Server
- DLNA Compliance: Yes

Synology Photos
- Facial Recognition: Yes

Snapshot Replication
- Maximum Snapshots per Shared Folder: 256
- Maximum of System Snapshots: 4,096

Surveillance Station
- Maximum IP cam (Licenses required): 30
- Total FPS (H.264)
* 900 FPS @ 720p (1280x720)
* 600 FPS @ 1080p (1920x1080)
* 300 FPS @ 3M (2048x1536)
* 200 FPS @ 5M (2591x1944)
* 150 FPS @ 4K (3840x2160)
- Total FPS (H.265) 900 FPS @ 720p (1280x720)
* 800 FPS @ 1080p (1920x1080)
* 500 FPS @ 3M (2048x1536)
* 450 FPS @ 5M (2591x1944)
* 200 FPS @ 4K (3840x2160)
- Notes
* Maximum IP cameras and FPS figures are tested with the device fully populated with drives and under a continuous recording setup.
* Actual system capabilities may differ depending on system configuration, drive performance, number of features enabled, and if additional workloads are present.

Synology Drive
- Recommended Number of Concurrent Sync Clients: 200 (the number of connections that can be maintained when the recommended number of hosted files was reached)
- 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)

Notes
- Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
- Btrfs 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: Yes

VPN Server
- Maximum Connections: 20