Synology RackStation RS3621RPXS 12-Bay NAS Enclosure, Intel Xeon D-1531 6-Core 2.2GHz, 8GB DDR4 RAM, 12 x 3.5"/2.5" SATA Drive Bays, 4 x RJ45 Gbt ETH, 2x USB 3.2, 2x PCIe 3.0 x8, Black | RS3621RPXS

Availability:
In Stock
Product Code:
RS3621RPXS
Brand:
Synology
QAR 13,729.02
Micro Less
Update Last Updated: 2025-07-08 10:36:47
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Synology RS3621RPx

 

Engineered to deliver high throughput and robust data protection to help safeguard mission-critical info, the RackStation RS3621RPxs 12-Bay NAS Enclosure from Synology is a 12-bay, 2 RU storage solution with built-in 500W redundant power supplies, ECC memory, and the Btrfs file system that can handle the demanding workloads of modern business environments. This unit has 12 drive bays, each of which natively supports 3.5" SATA hard drives, as well as 2.5" SATA hard drives and SSDs. Should users need to expand the overall capacity of their RS3621RPxs, two optional RX1217/RX1217RP expansion units may be used to connect up to 24 additional drive bays, and each unit is connected using an integrated expansion port. The RS3621RPxs can deliver 4K random reads of up to 189,098 IOPS and sequential reads of up to 4718 MB/s.

 

Key Features
  • 12 x 3.5"/2.5" SATA Drive Bays
  • 2.2 GHz Intel Xeon D-1531 Six-Core
  • 8GB of DDR4 ECC RAM
  • 4 x RJ45 Gigabit Ethernet Ports
  • 2 x USB 3.2 Gen 1 Type-A Ports
  • RAID 0, 1, 5, 6, 10, JBOD, & Basic
  • 2 x PCIe 3.0 x8/x8 Slots
  • Dual Redundant 500W Power Supplies
  • AES-NI Hardware Encryption Engine
  • Synology DiskStation Manager OS

 

 

 

Specifications

 

CPU
CPU ModelIntel Xeon D-1531
 CPU Quantity1
 CPU Architecture64-bit
 CPU Frequency6-core 2.2 (base) / 2.7 (turbo) GHz
 Hardware Encryption Engine (AES-NI) 
Memory
System Memory8 GB DDR4 ECC UDIMM
 Memory Module Pre-installed8 GB (8 GB x 1)
 Total Memory Slots4
 Maximum Memory Capacity64 GB (16 GB x 4)
 Notes
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product.
Storage
Drive Bays12
 Maximum Drive Bays with Expansion Unit36 (RX1217/RX1217RP x 2)
 Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA SSD
 Hot Swappable Drive* 
 Notes
  • It is strongly recommended that you only install drives listed on your device's compatibility list. Storage pool and volume creation processes may fail when using unverified drives. Synology is unable to provide technical support for devices using unsupported components.
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
External Ports
RJ-45 1GbE LAN Port4 (with Link Aggregation / Failover support)
 USB 3.2 Gen 1 Port*2
 Expansion Port2
 NotesThe USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
PCIe
PCIe Expansion2 x Gen3 x8 slots (x8 link)
File System
Internal Drives
  • Btrfs
  • EXT4
 External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT
 NotesexFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center.
Appearance
Form Factor (RU)2U
 Size (Height x Width x Depth)88 mm x 482 mm x 724 mm
 Weight14.5 kg
 Rack Installation Support*4-post 19" rack (Synology Rail Kit - RKS-02)
 NotesThe rail kit is sold separately
Others
System Fan80 mm x 80 mm x 4 pcs
 Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
 Easy Replacement System Fan 
 Power Recovery 
 Noise Level*50.2 dB(A)
 Scheduled Power On / Off 
 Wake on LAN / WAN 
 Power Supply Unit / Adapter500 W
550 W
 Redundant Power Supply 
 AC Input Power Voltage100 V to 240 V AC
 Power Frequency50/60 Hz, Single Phase
 Power Consumption140.01 W (Access)
65.94 W (HDD Hibernation)
 British Thermal Unit477.43 BTU/hr (Access)
224.86 BTU/hr (HDD Hibernation)
 Notes
  • To learn which PSU module is adopted on your system, please refer to the Product Change Notification and check the 3-digit serial number accordingly.
  • Power consumption is measured when it is fully loaded with Synology 8TB HAT5300-8T hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Operating Temperature0°C to 35°C (32°F to 95°F)
 Storage Temperature-20°C to 60°C (-5°F to 140°F)
 Relative Humidity5% to 95% RH

 

General
Brand
  • Synology
Model
  • RS3621RPXS
Microless SKU
  • 93316
Date first available
  • 17 October, 2021
Shipping Weight
  • 19.25 Kg
Shipping Dimensions
  • 62.00 cm x 85.50 cm x 22.01 cm

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