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Synology RackStation RS3621XS+ NAS/storage server Rack (2U) Ethernet LAN Black D-1541

Price: 5,055.54 Ex VAT ( 6,218.31 Inc VAT )

Delivery: 1-2 Days Delivery & Return Info


  • Small & Medium Business Storage server Rack (2U) Black
  • Number of storage drives supported: 12 HDD & SSD
  • Intel® Xeon® D-1541 2.1 GHz
  • 8 DDR4 Memory slots: 4 UDIMM ECC
  • Ethernet LAN 10000 Wake-on-LAN ready
  • Cooling type: Active
  • 500 W

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Product Specification

Product Code
Manufacturer Ref
4711174724079, 0846504004072, 846504004072

Product Details

- Synology RackStation RS3621XS+ NAS/storage server Rack (2U) Ethernet LAN Black D-1541

Accelerate your business operations
The 12-bay RS3621xs+ is capable of delivering over 238K 4K random read IOPS and 5,819 MB/s sequential read throughput1— a true enterprise powerhouse. With full power supply redundancy, an 8-core processor, ECC memory, advanced snapshot technology, and file self-healing, the RS3621xs+ provides a reliable foundation to any data-driven business.

Storage you can trust
The RS3621xs+ keeps your data protected while you concentrate on delivering the best results to your customers — even when disaster strikes.

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

Maximize service availability
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.

Tailored to your business
The RS3621xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment2.

Double bandwidth
Upgrade network bandwidth in minutes by 2x or more with Synology’s range of 10GbE NICs.

SSD cache3
Boost read/write IOPS by up to 16 times by enabling SSD cache with our Synology M.2 NVMe adapter cards and SNV3500 SSDs or by installing one or more 2.5” SAT5200 SSDs.

Storage expansion
Quickly and easily scale up to 36 drives with two RX1217(RP) expansion units.

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.

Active Backup Suite
Enables administrators to easily backup the entire IT infrastructure to their NAS, including Windows & Linux workstations and servers, file servers, VMware and Hyper-V virtual machines, and Microsoft 365 and Google Workspace accounts. Backups benefit from deduplication, multiversioning, and optimizations to reduce bandwidth and storage used.

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.


    Storage drive interfaceSerial ATA II, Serial ATA III
    Storage drive sizes supported2.5,3.5"
    RAID supportYes
    RAID levels5, 6
    Hot-swap drive baysYes
    Storage drives installedNo
    Number of storage drives supported12
    Installed storage drive typeNo
    Supported storage drive typesHDD & SSD
    Processor manufacturerIntel
    Processor familyIntel® Xeon®
    Processor modelD-1541
    Processor frequency2.1 GHz
    Processor boost frequency2.7 GHz
    Processor cores8
    CPU configuration (max)1
    On-board graphics card modelNot available
    Conflict-Free processorYes
    Internal memory typeDDR4
    Maximum RAM supported64 GB
    Memory slots4
    Internal memory8 GB
    Memory form factorUDIMM
    Ethernet LANYes
    Ethernet LAN data rate supported (max)10000 Mbit/s
    Wake-on-LAN readyYes
    Ports & interfaces
    USB portYes
    USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity2
    Ethernet LAN (RJ-45) ports6
    PCI Express x8 (Gen 3.x) slots2
    Chassis typeRack (2U)
    Cooling typeActive
    Product colourBlack
    Number of fans4 fan(s)
    Fan diameter8 cm
    Built-in displayNo
    Built-in speaker(s)No
    TypeStorage server
    Device classSmall & Medium Business
    Backup functionYes
    Noise level50.2 dB
    On/off switchYes
    Power supply unit (PSU) capacity500 W
    Number of power supply units1
    Redundant power supply (RPS) supportYes
    Power consumption (typical)142.5 W
    Power consumption (HDD standby)72.76 W
    AC input voltage100 - 240 V
    AC input frequency50 - 60 Hz
    Weight & dimensions
    Width482 mm
    Depth724 mm
    Height88 mm
    Weight14.5 kg
    Packaging content
    Power cables quantity2
    Processor special features
    Embedded options availableNo
    Enhanced Intel SpeedStep TechnologyYes
    Execute Disable BitYes
    Idle StatesYes
    Intel 64Yes
    Intel Enhanced Halt StateYes
    Intel Secure Key Technology version1.00
    Intel Trusted Execution TechnologyYes
    Intel TSX-NIYes
    Intel TSX-NI version1.00
    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
    Operational conditions
    Operating temperature (T-T)0 - 35 °C
    Operating relative humidity (H-H)5 - 95%
    Storage temperature (T-T)-20 - 60 °C
    Logistics data
    Harmonized System (HS) code84714100
    Product Reviews

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    Synology RackStation RS3621XS+ NAS/storage server Rack (2U) Ethernet LAN Black D-1541