Flexible storage with redundancy
Over 3,519/1,790 MB/s seq. read/write2 , built-in 10GbE, and up to 560 TB raw storage after expansion3,4
Flexible configuration
Add 12 extra drive bays, 10/25GbE ports, and SSD cache volumes whenever needed
Versatile applications
Redundant power supplies ensure maximum server uptime by preventing single-point power failures.
Built-in 1x 10GbE and 2x 1GbE ports can be bonded with Link Aggregation to enable automatic network failover and load balancing.

The RS2825RP+ can be flexibly configured to meet evolving needs through faster networking, local SSD cache, or increased storage.

Provide secure and convenient cross-platform tile access, sharing, and synchronization across multiple locations.





Monitor and manage your Synology fleet from a central interface, on-prem or in the cloud.


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DSM Specifications
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| Maximum Single Volume Size |
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| Maximum Internal Volume Number | 32 | |
| SSD Read/Write Cache (Determining cache size) | ||
| SSD TRIM | ||
| 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) | 560 | |
| Windows Access Control List (ACL) Integration | ||
| NFS Kerberos Authentication | ||
| Notes |
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| Maximum Local User Accounts | 1,024 | |
| Maximum Local Groups | 256 | |
| Maximum Shared Folder | 256 | |
| Maximum Shared Folder Sync Tasks | 12 | |
| Maximum Hybrid Share Folders | 10 | |
| Folder and Package Backup | ||
| Entire System Backup | ||
| Synology High Availability | ||
| Syslog Events per Second | 1,000 | |
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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 | |
| 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, 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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Synology AI Console
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Third-Party AI Model Integration | |
| Maximum De-Identification Rate | 500 words per second | |
| Notes |
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| Maximum Number of Users | 300 | |
| Notes |
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Download Station
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Maximum Concurrent Download Tasks | 80 |
| Maximum iSCSI Target Number | 64 | |
| Maximum LUN | 128 | |
| LUN Clone/Snapshot, Windows ODX | ||
| Free Email Accounts | 5 (Additional accounts require purchase of licenses) | |
| Maximum Number of Users | 1,100 | |
| Notes |
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| DLNA Compliance | ||
| Facial Recognition | ||
| Object Recognition | ||
| Maximum Snapshots per Shared Folder | 256 | |
| Maximum of System Snapshots | 4,096 | |
| 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 | 1,000 | |
| Maximum Number of Hosted Files | 15,000,000 (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 | 900 | |
| Notes |
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| Recommended Virtual Machine Instances | 8 | |
| Recommended Virtual DSM Number (Licenses required) | 8 (including 1 Free License) | |
| Notes | The specifications vary depending on system configuration and memory size. | |
| Maximum Connections | 12 | |
| NAS | |
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| CPU Model | AMD Ryzen V1780B |
| CPU Quantity | 1 |
| CPU Core | 4 |
| CPU Architecture | 64-bit |
| CPU Frequency | 3.35 (base) / 3.6 (turbo) GHz |
| Hardware Encryption Engine | yes |
| Memory | 8 GB DDR4 ECC UDIMM |
| Drive Bays | 16 |
| Compatible Drive Type | 3.5 |
| Hot Swappable Drive | yes |
| RJ-45 1GbE LAN Port | 2 |
| USB 3.2 Gen 1 Port | 2 |
| System Fan | 80 mm x 80 mm x 3 pcs |
| Power Supply Unit / Adapter | 550 watts |
| Total Memory Slots | 2 |
| Maximum Memory Capacity | 32 GB (16 GB x 2) |
| Expansion Port | 1 |
| PCIe Expansion | 1 x Gen3 x8 slot (x4 link) |
| Form Factor (RU) | 3U |
| Redundant Power Supply | yes |
| RJ-45 10GbE LAN Port | 1 |