Who is using Synology?
Watch how our solutions empower businesses around the world with limitless possibilities.
Accelerate your business with an affordable all-flash solution
Watch how our solutions empower businesses around the world with limitless possibilities.

The storage array has been proven to be more than capable of going toe-to-toe with what would be classed as an enterprise-class all flash array for a fraction of the cost. Mark Pearce, IT Infrastructure Manager, Mantra Group

By using Synology systems within our hospital networks, we can enjoy secure, fast, and stable solutions for backup, file, and cloud services as well as virtual server environments. Artemis IT Department
The Btrfs file system introduces advanced storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overheads. It offers flexible, efficient data protection and recovery tools while ensuring high-level data integrity. Learn more

Remove duplicate data on all-flash arrays with volume-wide deduplication to greatly increase storage efficiency. Eliminate redundant data to save up to 65% in storage space use in applications like virtual desktop infrastructure, and virtual machine.

At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty, providing responsive technical support and hardware replacement services to maximize your return on investment. Learn more
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.
Integrated, modern, and license-free backup & instant recovery solution for VMware, Windows, Microsoft 365, and Google Workspace.
Run various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.
Secure, reliable, and private mail server solution with an intuitive and modern mail client.
Secure data with comprehensive built-in security tools to protect your devices against evolving threats.
Schedulable and instantaneous data protection for shared folders and iSCSI LUNs for disaster prevention.
Engineered to handle high-intensity workloads, Synology hard drives consistently deliver top-grade performance.

Hardware Specifications |
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CPU |
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CPU
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CPU Model | Intel Xeon D-1567 |
| CPU Quantity | 1 | |
| CPU Core | 12 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 2.1 (base) / 2.7 (turbo) GHz | |
| Hardware Encryption Engine | ||
Memory |
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Memory
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System Memory | 16 GB DDR4 ECC RDIMM |
| Memory Module Pre-installed | 16 GB (16 GB x 1) | |
| Total Memory Slots | 4 | |
| Maximum Memory Capacity | 128 GB (32 GB x 4) | |
| Notes |
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Storage |
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Storage
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Drive Bays | 24 |
| Maximum Drive Bays with Expansion Unit | 72 (FX2421 x 2) | |
| Drive Type (See all supported drives) |
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| Hot Swappable Drive* | ||
| Notes | 2.5" SAS HDD and 2.5" SAS SSD only indicate the drive types that may be compatible with Synology devices. For supported drive models, please refer to the device’s compatibility list. | |
External Ports |
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External Ports
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RJ-45 1GbE LAN Port | 4 |
| RJ-45 10GbE LAN Port | 2 | |
| USB 3.2 Gen 1 Port | 2 | |
| Expansion Port | 1 | |
| Expansion Port Type | Mini-SAS HD | |
PCIe |
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PCIe
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PCIe Expansion | 1 x Gen3 x8 slot (x8 link) |
Appearance |
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Appearance
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Form Factor (RU) | 2U |
| Size (Height x Width x Depth) | 88 mm x 482 mm x 724 mm | |
| Weight | 14.9 kg | |
| Rack Installation Support* | 4-post 19" rack (Synology Rail Kit - RKS-02) | |
| Notes | The rail kit is sold separately | |
Others |
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Others
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System Fan | 80 mm x 80 mm x 4 pcs |
| Fan Speed Mode |
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| Easy Replacement System Fan | ||
| Power Recovery | ||
| Noise Level* | 57 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | 500 watts | |
| Redundant Power Supply | ||
| AC Input Power Voltage | 100V to 240V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* |
258.23 watts (Access) 127.99 watts (HDD Hibernation) |
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| British Thermal Unit |
881.12 BTU/hr (Access) 436.72 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 35°C (32°F to 95°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 | |
Certification |
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Certification
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Warranty |
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Warranty
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5 Years | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
Environment |
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Environment
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RoHS Compliant | |
Packaging Content |
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Packaging Content
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Optional Accessories |
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Optional Accessories
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| Notes |
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DSM Specifications |
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| Maximum Single Volume Size |
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| Maximum Internal Volume Number | 256 | |
| SSD Read/Write Cache (Determining cache size) | ||
| SSD TRIM | ||
| RAID Group | ||
| Supported RAID Type |
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| RAID Migration |
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| Volume Expansion with Larger HDDs |
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| Volume Expansion by Adding a HDD |
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| Global Hot Spare Supported RAID Type |
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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 Number of SMB Connections (FSCT-Based) | 2,700 | |
| Windows Access Control List (ACL) Integration | ||
| NFS Kerberos Authentication | ||
| Notes |
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| Maximum Local User Accounts | 10,240 | |
| Maximum Local Groups | 512 | |
| Maximum Shared Folder | 512 | |
| Maximum Shared Folder Sync Tasks | 32 | |
| Hybrid Share Folder Number | 30 | |
| Data & Folder Backup | ||
| Entire System Backup | ||
| Notes | Full-system backup requires DSM 7.2 or later. | |
| Synology High Availability | ||
| Syslog Events per Second | 3,000 | |
Virtualization |
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Virtualization
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VMware vSphere | ESXi 8.0 U2, ESXi 8.0 U1, ESXi 8.0, ESXi 7.0 U3, ESXi 7.0 U2, ESXi 7.0 U1, ESXi 7.0, ESXi 6.7 U3, ESXi 6.7 U2, ESXi 6.7 U1, ESXi 6.7, ESXi 6.5 U3, ESXi 6.5 U2, ESXi 6.5 U1, ESXi 6.5 |
| Microsoft Hyper-V | Windows Server 2022, Windows Server 2019, Windows Server 2016 | |
| Citrix XenServer | XenServer 8, Citrix Hypervisor 8.2 LTSR CU1 | |
| OpenStack | Cinder | |
| Supported Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, 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. | |
Add-on Packages (view the complete package list) |
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Synology AI Console |
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Synology AI Console
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Synology AI Console
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Third-Party AI Model Integration | |
| Maximum De-Identification Rate | 2,700 words per second | |
| Notes |
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| Maximum Number of Users | 600 | |
| Notes |
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| Maximum iSCSI Target Number | 256 | |
| Maximum LUN | 512 | |
| LUN Clone/Snapshot, Windows ODX | ||
| Free Email Accounts | 5 (Additional accounts require purchase of licenses) | |
| Maximum Number of Users | 5,800 | |
| Notes |
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| Maximum Snapshots per Shared Folder | 1,024 | |
| Maximum Snapshots per LUN | 256 | |
| Maximum Snapshots per System | 65,536 | |
| Maximum Replication Tasks for Shared Folders | 128 | |
| Maximum Replication Tasks for LUNs | 64 | |
| Maximum Replication Tasks per System | 128 | |
| 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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| Maximum Number of Users | 5,000 | |
| Maximum Number of Hosted Files | 50,000,000 (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 | 4,800 | |
| Notes |
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| Recommended Virtual Machine Instances | 24 (Learn more) | |
| Recommended Virtual DSM Number (Licenses required) | 24 (including 1 Free License) | |
| Notes | The specifications vary depending on system configuration and memory size. | |
| Maximum Connections | 32 | |

4.7 / 5Synology is recognized in the Gartner Peer Insights Voice of the Customer for Primary Storage Platform.