Synology RS2821RP+ is a 3U 16-bay storage server designed to accommodate a diverse set of business requirements. Scalable to 28 drives, the unit provides powerful backup and restoration functionality for the SMB sector. It delivers 2,200 MB/s sequential read and 105K 4K random read performance1, and can be upgraded with SSD cache and 10/25Gb Ethernet2 options.
2,220 MB/s seq. read 105K 4K random read performance1
Over 105K/59K random read/write IOPS and up to 2,220/1,164 MB/s sequential read/write throughput ensure ample performance for demanding workloads.1
Built for reliability
Redundant power
Reduce the possibility of power disruptions on a single distribution channel or PDU adversely impacting data and service availability.
Near-zero downtime
Pair two identical devices with Synology High Availability and enable automatic minute-level failover between both devices in the event one server fails. Learn more
Data integrity and protection
ECC memory prevents data corruption, while the Btrfs file system brings higher reliability, snapshot technology, and simplified data protection. Learn more
Customize to suit
Easily adapt the RS2821RP+ to any business environment by adding faster networking, local SSD cache, or storage capacity.2
10/25GbE ready
Support for 10/25GbE NICs lets you boost server throughput up to five times using Link Aggregation (bonding).
SSD cache3
Boost read/write IOPS over HDD-only arrays by up to 16 times or more with NVMe or SATA SSD Cache
On-demand drive bays
Expand to 28 drive bays with one RX1217RP/RX1217 expansion unit
Storage for virtualization
DSM streamlines provisioning for and management of virtual machines with full certification for VMware® vSphere™, Microsoft® Hyper-V®, Citrix® XenServer™, and OpenStack virtualization environments.
Synology Storage Console for VMware or Windows platforms lets you manage storage directly from your hypervisor. VMware VAAI integration and Windows ODX help offload storage operations and speed up data transfer. Learn more
Works best with Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.
Enterprise Series 3.5" SATA
Plus Series 3.5" SATA
Enterprise Series 2.5" SATA
Enterprise Series M.2 NVMe
Extra protection with Extended Warranty Plus
Extend the standard 3-year hardware warranty of your RS2821RP+ with 2 more years of Synology-certified support and premium services that help you recover faster in the event of disaster.
RackStation RS2821RP+
1 Power button and indicator
2 Status Indicator
3 Alert Indicator
4 Alert Off Button
5 Drive status indicator
6 Drive tray
7 Rail Kit Release Tab
8 PSU fan
9 Power Port
10 PSU indicator
11 Console port
12 PCIe expansion slot
13 1GbE RJ-45 port
14 USB 3.2 Ports
15 Expansion port
16 Reset button
Hardware Specifications
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CPU
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CPU Model |
AMD Ryzen V1500B |
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CPU Quantity |
1 |
|
CPU Core |
4 |
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CPU Architecture |
64-bit |
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CPU Frequency |
2.2 GHz |
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Hardware Encryption Engine |
 |
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Memory
|
System Memory |
4 GB DDR4 ECC UDIMM |
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Memory Module Pre-installed |
4 GB (4 GB x 1) |
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Total Memory Slots |
2 |
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Maximum Memory Capacity |
32 GB (16 GB x 2) |
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Storage
|
Drive Bays |
16 |
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Maximum Drive Bays with Expansion Unit |
28 (RX1217 x 1) |
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Compatible Drive Type* (See all supported drives) |
- 3.5" SATA HDD
- 2.5" SATA HDD
- 2.5" SATA SSD
|
|
Hot Swappable Drive* |
|
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External Ports
|
RJ-45 1GbE LAN Port |
4 |
|
USB 3.2 Gen 1 Port* |
2 |
|
Expansion Port |
1 |
|
Expansion Port Type |
Infiniband |
|
Notes |
The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. |
|
PCIe
|
PCIe Expansion |
1 x Gen3 x8 slot (x4 link) |
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Appearance
|
Form Factor (RU) |
3U |
|
Size (Height x Width x Depth) |
132.3 mm x 482 mm x 656.5 mm |
|
Weight |
17.1 kg |
|
Rack Installation Support* |
4-post 19" rack (Synology Rail Kit - RKS-02) |
|
Notes |
The rail kit is sold separately |
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Others
|
System Fan |
80 mm x 80 mm x 3 pcs |
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Fan Speed Mode |
- Full-Speed Mode
- Cool Mode
- Quiet Mode
|
|
Easy Replacement System Fan |
|
|
Power Recovery |
|
|
Noise Level* |
53.5 dB(A) |
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Scheduled Power On / Off |
|
|
Wake on LAN / WAN |
|
|
Power Supply Unit / Adapter |
550 watts |
|
Redundant Power Supply |
|
|
AC Input Power Voltage |
100 V to 240 V AC |
|
Power Frequency |
50/60 Hz, Single Phase |
|
Power Consumption |
97.54 watts (Access)
49.57 watts (HDD Hibernation) |
|
British Thermal Unit |
332.61 BTU/hr (Access)
169.03 BTU/hr (HDD Hibernation) |
|
Temperature
|
Operating Temperature |
0°C to 35°C (32°F to 95°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
- EAC
- CCC
- KC
- UL
|
|
Warranty
|
3-year hardware warranty, extendable to 5 years with EW202 or Extended Warranty Plus |
|
Notes |
- The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
- Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa, and Oceania. For exact availability information please visit their respective websites.
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Environment
|
RoHS Compliant |
|
Packaging Content
|
- Main Unit X 1
- Accessory Pack X 1
- AC Power Cord X 2
- Quick Installation Guide X 1
|
|
Optional Accessories
|
|
|
Notes |
All memory modules will operate at the maximum frequency specified by the CPU manufacturer. |
