Synology · MPN: RS3621RPXS
£3,358.99
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Key specs

  • Processor modelD-1531
  • Internal memory typeDDR4
  • Weight14.5 kg
All specifications

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Overview

  • Small & Medium Business Storage server Rack (2U) Black
  • Number of storage drives supported: 12 HDD & SSD
  • Intel® Xeon® D-1531 2.2 GHz
  • 8 DDR4 Memory slots: 4 UDIMM ECC
  • Ethernet LAN Wake-on-LAN ready
  • Cooling type: Active
  • 500 W

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.

Specifications

Storage

RAID supportYes
Storage drive sizes supported2.5,3.5"
Storage drive interfaceSerial ATA II, Serial ATA III
Supported storage drive typesHDD & SSD
Installed storage drive typeNo
Number of storage drives supported12
Storage drives installedNo

Processor

Conflict-Free processorYes
On-board graphics card modelNot available
CPU configuration (max)1
Processor cores6
Processor boost frequency2.7 GHz
Processor frequency2.2 GHz
Processor modelD-1531
Processor familyIntel® Xeon®
Processor manufacturerIntel
Show all 69 specificationsShow fewer specifications

Memory

Memory form factorUDIMM
ECCYes
Memory slots4
Maximum RAM supported64 GB
Internal memory typeDDR4
Internal memory8 GB

Network

Wake-on-LAN readyYes
Ethernet LANYes

Ports & interfaces

PCI Express x8 (Gen 3.x) slots2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity2
USB portYes
Ethernet LAN (RJ-45) ports4

Design

Built-in speaker(s)No
Built-in displayNo
Fan diameter8 cm
Number of fans4 fan(s)
Product colourBlack
Cooling typeActive
Chassis typeRack (2U)

Performance

On/off switchYes
Noise level50.2 dB
Backup functionYes
Device classSmall & Medium Business
TypeStorage server

Power

AC input frequency50 - 60 Hz
AC input voltage100 - 240 V
Power consumption (HDD standby)65.94 W
Power consumption (typical)140.01 W
Redundant power supply (RPS) supportYes
Power supply unit (PSU) capacity500 W

General

Product familyRackStation

Weight & dimensions

Weight14.5 kg
Height88 mm
Depth724 mm
Width482 mm

Processor special features

Embedded options availableNo
Execute Disable BitYes
Intel 64Yes
Intel Virtualization Technology (VT-x)Yes
Intel VT-x with Extended Page Tables (EPT)Yes
Intel Secure Key Technology version1.00
Intel Virtualization Technology for Directed I/O (VT-d)Yes
Enhanced Intel SpeedStep TechnologyYes
Idle StatesYes
Intel Enhanced Halt StateYes
Intel Trusted Execution TechnologyYes
Intel TSX-NIYes
Intel TSX-NI version1.00

Packaging content

Power cables quantity2

Operational conditions

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

Other features

CertificationFCCCEBSMIVCCIRCMEACCCCKCUL

Manuals & downloads

Delivery & returns

Delivery

  • FREE standard delivery on orders over £50, otherwise £4.95 (3–5 working days).
  • Express delivery £9.99 (1–3 working days) on selected products, UK mainland.
  • PlayStation and Arozzi products use a 5–7 working-day service.
  • Orders are processed within 24 hours, Monday to Friday excluding bank holidays. All deliveries must be signed for.

Returns

  • Changed your mind? Tell us within 14 days of receiving your item, then return it within a further 14 days, unused and in its original packaging. A minimum £9.99 collection fee applies.
  • Faulty or damaged on arrival? Contact us within 48 hours of delivery.
  • Custom-built PCs can only be returned if faulty. Opened headphones, earphones and AirPods can't be returned for hygiene reasons.

Full delivery information · Full returns policy