High-performance storage for data protection, file serving, and more.
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 performance, and can be upgraded with SSD cache and 10/25Gb Ethernet options.

Compute
AMD Ryzen™ V1500B quad-core 2.2 GHz

Memory
4 GB ECC DDR4, up to 32 GB

Scalability
Up to 28 drive bays with RX1217RP/RX1217
Specification
Hardware Specifications
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CPU
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CPU Model | AMD Ryzen V1500B |
CPU Quantity | 1 | |
CPU Core | 4 | |
CPU Architecture | 64-bit | |
CPU Frequency | 2.2 GHz | |
Hardware Encryption Engine |
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Memory
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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) | |
Notes |
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Storage
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Drive Bays | 16 |
Maximum Drive Bays with Expansion Unit | 28 (RX1217 x 1) | |
Drive Type |
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Hot Swappable Drive* |
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Notes | The use of non-validated components may limit certain functionality and result in data loss and system instability. | |
External Ports
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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
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PCIe Expansion | 1 x Gen3 x8 slot (x4 link) |
Appearance
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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 | |
Notes | The rail kit is sold separately | |
Others
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System Fan | 80 mm x 80 mm x 3 pcs |
Fan Speed Mode |
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Easy Replacement System Fan |
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Power Recovery |
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Noise Level* | 53.5 dB(A) | |
Scheduled Power On / Off |
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Wake on LAN / WAN |
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Power Supply Unit / Adapter | 550 watts | |
Redundant Power Supply |
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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) |
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British Thermal Unit | 332.61 BTU/hr (Access) 169.03 BTU/hr (HDD Hibernation) |
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Notes |
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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) | |
Relative Humidity | 5% to 95% RH | |
Certification
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Warranty
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3-year hardware warranty, extendable to 5 years with extended warranty | |
Notes | ||
Environment
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RoHS Compliant | |
Packaging Content
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