Synology RackStation RS2821RP+ 16-Bay NAS
Securing your business assets
The 16-bay RS4021xs+ provides solid data security and lightening-fast performance with over 234K 4K random read IOPS and 6,258 MB/s sequential read throughput1. Together with its 8-core processor, ECC memory, advanced snapshot technology, and built-in 10GbE connectivity, the RS4021xs+ can support large multi-user environments while handling data-intensive workloads.
#1: Compute - Intel® Xeon® D-1541 8-core 2.1 GHz
#2: Networking - Built-in dual-port 10GbE
#3: Memory - 16 GB ECC DDR4 Up to 64 GB
#4: Scalability - Up to 40 drive bays with RX1217RP/RX1217
Synology RackStation RS2821RP+ 16-Bay NAS
CPU
CPU Model
Intel Xeon D-1541
CPU Quantity
1
CPU Core
8
CPU Architecture
64-bit
CPU Frequency
2.1 (base) / 2.7 (turbo) GHz
Memory
System Memory
16 GB DDR4 ECC UDIMM
Memory Module Pre-installed
16 GB (16 GB x 1)
Total Memory Slots
4
Maximum Memory Capacity
64 GB (16 GB x 4)
Storage
Drive Bays
16
Maximum Drive Bays with Expansion Unit
40 (RX1217 x 2)
Compatible Drive Type* (See all supported drives)
3.5" SATA HDD
2.5" SATA SSD
External Ports
RJ-45 1GbE LAN Port
4
RJ-45 10GbE LAN Port
2
USB 3.2 Gen 1 Port*
2
Expansion Port
2
PCIe
PCIe Expansion
2 x Gen3 x8 slots (x8 link)
Appearance
Form Factor (RU)
3U
Size (Height x Width x Depth)
132.3 mm x 482 mm x 656.5 mm
Weight
17.4 kg
Rack Installation Support*
4-post 19" rack (Synology Rail Kit - RKS-02)
Others
System Fan
80 mm x 80 mm x 3 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode
Power Supply Unit / Adapter
800 watts
550 watts*
AC Input Power Voltage
100 V to 240 V AC
Power Frequency
50/60 Hz, Single Phase
Power Consumption
145.79 watts (Access)
62.68 watts (HDD Hibernation)
British Thermal Unit
497.14 BTU/hr (Access)
213.74 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
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
DDR4 ECC UDIMM: D4EC-2666-16G
Expansion Units: RX1217/RX1217RP
Enterprise Series 3.5" SATA HDD: HAT5300 Series
Enterprise Series 2.5" SATA SSD: SAT5200 Series
M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1
M.2 SSD Adapter Card: M2D20
25GbE Network Interface Card: E25G30-F2
10GbE Network Interface Card: E10G21-F2/E10G30-T2/E10G18-T1
Rail Kit Sliding: RKS-02
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