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Synology RackStation RS3621RPXS NAS/storage server Rack (2U) Intel® Xeon® D-1531 8 GB DDR4 Black

Synology RackStation RS3621RPXS, Storage server, Rack (2U), Intel® Xeon®, D-1531, 8 GB, DDR4

Best offerPrice trend

£3,434.99

-40%
Price trend
Detailed analysis
Price history of Synology RackStation RS3621RPXS NAS/storage server Rack (2U) Intel® Xeon® D-1531 8 GB DDR4 Black over the last 3 months
DatePrice
6 March 2026£5,695.95
12 March 2026£3,671.88
20 March 2026£3,370.20
27 March 2026£3,493.75
29 March 2026£3,467.99
4 April 2026£3,484.99
11 April 2026£3,480.99
4 May 2026£3,431.99
8 May 2026£3,438.99
14 May 2026£3,448.99
17 May 2026£3,467.99
22 May 2026£3,438.99
27 May 2026£3,426.99
30 May 2026£3,446.99
2 June 2026£3,434.99

Compare Synology RackStation RS3621RPXS NAS/storage server Rack (2U) Intel® Xeon® D-1531 8 GB DDR4 Black prices UK

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Product Information

Safeguard your business assets
Synology RS3621RPxs is a powerful 12-bay storage server. Its 6-core processor enables compute-intensive services while its redundant power, ECC memory, and Btrfs file system safeguard mission-critical data. Capable of delivering 189,098 4K random read IOPS and 4,718 MB/s sequential read throughput1, it is ideal for small businesses.

Reliability first
Service continuity is at the core of the RS3621RPxs design.

Redundant power
Dual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans can be replaced without powering down the system.

Near-zero downtime
Synology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover.

Next-generation file system
Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots.

Customize to suit
The two built-in PCIe slots allow users to customize the RS3621RPxs to satisfy unique performance, networking, and storage requirements2.

10GbE ready
Support for 10GbE NICs expands the throughput of the unit by up to 5x times using link aggregation.

SSD cache3
Boost read/write IOPS by up to 16 times by enabling SSD cache via our Synology M.2 NVMe adapter cards and SNV3000 Series SSDs or by installing one or more 2.5” SAT5200 SSDs.

On-demand drive bays
Expand to 36 drive bays using two RX1217(RP) expansion units with minimal intervention.

Hyper Backup
A comprehensive backup and recovery solution for securing data stored on Synology servers. Backup data locally, to another Synology device, rsync server, or cloud-based storage such as Google Drive, Dropbox, S3-compatible destinations, and Synology C2. Deduplication4, integrity checks, and incremental transfer technology reduce bandwidth and storage used.

Snapshot Replication
Easily schedule flexible point-in-time backups of shared folders and iSCSI LUNs with an RPO as low as 5 minutes and recovery in seconds. Set up replication and failover to other Synology storage systems for fast RTOs and minimal service disruption.

Storage for virtualization
Synology iSCSI storage supports mainstream virtualization solutions with an easy management interface to enhance usability. VMware vSphere 6.5 and VAAI integration helps offload storage operations. Windows Offloaded Data Transfer (ODX) speeds up data transfer. OpenStack Cinder support turns your Synology NAS into a block-based storage component. Additionally, Synology Storage Console enables even more simplified storage provisioning and management options in VMware and Windows environments

Works best with Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.

NAS & Storage Servers Synology

Product

Name
Synology RackStation RS3621RPXS NAS/storage server Rack (2U) Intel® Xeon® D-1531 8 GB DDR4 Black

Weight & dimensions

Width
482 mm
Depth
724 mm
Height
88 mm
Weight
14.5 kg

Power

Power supply unit (PSU) capacity
500 W
Redundant power supply (RPS) support
Yes
Power consumption (typical)
140.01 W
Power consumption (HDD standby)
65.94 W
AC input voltage
100 - 240 V
AC input frequency
50 - 60 Hz

Operational conditions

Operating temperature (T-T)
0 - 35 °C
Operating relative humidity (H-H)
5 - 95%
Storage temperature (T-T)
-20 - 60 °C

Network

Ethernet LAN
Yes
Wake-on-LAN ready
Yes

Ports & interfaces

Ethernet LAN (RJ-45) ports
4
USB port
Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
2
PCI Express x8 (Gen 3.x) slots
2

Memory

Internal memory
8 GB
Internal memory type
DDR4
Maximum RAM supported
64 GB
Memory slots
4
Memory form factor
UDIMM
ECC
Yes

Processor

Processor family
Intel® Xeon®
Processor manufacturer
Intel
Processor model
D-1531
Processor frequency
2.2 GHz
Processor boost frequency
2.7 GHz
Processor cores
6
CPU configuration (max)
1
On-board graphics card model
Not available
Conflict-Free processor
Yes

Other features

Certification
FCC CE BSMI VCCI RCM EAC CCC KC UL

Storage

Storage drives installed
No
Number of storage drives supported
12
Installed storage drive type
No
Supported storage drive types
HDD & SSD
Storage drive interface
Serial ATA II, Serial ATA III
RAID support
Yes
Storage drive sizes supported
2.5,3.5"

Packaging content

Power cables quantity
2

Performance

Type
Storage server
Device class
Small & Medium Business
Backup function
Yes
Noise level
50.2 dB
On/off switch
Yes

Design

Chassis type
Rack (2U)
Cooling type
Active
Product colour
Black
Number of fans
4 fan(s)
Fan diameter
8 cm
Built-in display
No
Built-in speaker(s)
No

Processor special features

Embedded options available
No
Enhanced Intel SpeedStep Technology
Yes
Execute Disable Bit
Yes
Idle States
Yes
Intel 64
Yes
Intel Enhanced Halt State
Yes
Intel Secure Key Technology version
1.00
Intel Trusted Execution Technology
Yes
Intel TSX-NI
Yes
Intel TSX-NI version
1.00
Intel Virtualization Technology (VT-x)
Yes
Intel Virtualization Technology for Directed I/O (VT-d)
Yes
Intel VT-x with Extended Page Tables (EPT)
Yes

Logistics data

Harmonized System (HS) code
84714100

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