Synology RS2821RP+


Plus Series RackStation RS2821RP+

High-performance storage for data protection, file serving, and more.

CPU: AMD Ryzen V1500B 4 Cores 2.2 GHz


RJ-45 Gigabit LAN Port x4

USB 3.2 Gen 1 Port x2

Expansion Port x1

PCIe Gen3 x8 slot x1

Redundant Power Supply

3 Years Warranty

----- Reference -----

Synology ​RS2821RP+, 16 Bays NAS,  High-performance storage for data protection, file serving, and more, CPU: AMD Ryzen V1500B 4 Cores 2.2 GHz, RAM: 4 GB DDR4 ECC UDIMM (Max 32GB), RJ-45 Gigabit LAN Port x4, USB 3.2 Gen 1 Port x2, Expansion Port x1, PCIe Gen3 x8 slot x1, Redundant Power Supply, 3 Years Warranty

Drive Bays : 16-Bays NAS
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Synology RackStation RS2821RP+​

High-performance storage for data protection, file serving, and more.

Versatile and scalable storage

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.

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AMD Ryzen™ V1500B quad-core 2.2 GHz



2,220 MB/s seq. read 105K 4K random read performance1



4 GB ECC DDR4, up to 32 GB



Up to 28 drive bays with RX1217RP/RX1217

High performance storage for anything

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

4K Random IOPS

Sequential Throughput

Built for reliability

Redundant power

Near-zero downtime

Data integrity and protection

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

SSD cache3

On-demand drive bays

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

vmware     windows2022    citrix    openstack

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.


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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

CPU Model AMD Ryzen V1500B
CPU Quantity 1
CPU Core 4
CPU Architecture 64-bit
CPU Frequency 2.2 GHz
Hardware Encryption Engine
System Memory 4 GB DDR4 ECC UDIMM
Memory Module Pre-installed 4 GB (4 GB x 1)
Total Memory Slots 2
Maximum Memory Capacity 32 GB (16 GB x 2)
Drive Bays 16
Maximum Drive Bays with Expansion Unit 28 (RX1217 x 1)
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
Hot Swappable Drive*
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 Expansion 1 x Gen3 x8 slot (x4 link)
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
System Fan 80 mm x 80 mm x 3 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Power Recovery
Noise Level* 53.5 dB(A)
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)
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
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • EAC
  • CCC
  • KC
  • UL
3-year hardware warranty, extendable to 5 years with EW202 or Extended Warranty Plus
  • 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.
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.                           

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