SYNOLOGY 

SYNOLOGY 12 BAY RACKSTATION RS3621XS+ (DISKLESS)

Mfg Part Number:  RS3621XS+  
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Price: $5,540.29 + Free Shipping
Quantity:
In Stock: 16
Last Updated: Feb 04, 2026
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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 throughput- 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.

Compute

Intel® Xeon® D-1541 8-core 2.1 GHz

Networking

Built-in dual-port 10GbE

Memory

8 GB ECC DDR4 Up to 64 GB

Scalability

Up to 36 drive bays with RX1217(RP)

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 environment.

  • Double bandwidth

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

  • SSD cache

    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.

License-free data protection

Keep disaster at bay

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. Deduplication, 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.

Main Specification
General Information
Manufacturer Synology, Inc
Manufacturer Part Number RS3621XS+
Manufacturer Website Address http://www.synology.com
Brand Name Synology
Product Line RackStation
Product Series XS+
Product Model RS3621XS+
Product Name RackStation RS3621XS+ SAN/NAS Storage System
Packaged Quantity 1
Product Type SAN/NAS Storage System
Storage
Number of Hard Drives Supported 12
Number of Hard Drives Installed 0
Number of Solid State Drive Supported 12
Number of Solid State Drive Installed 0
Processor & Chipset
Processor Manufacturer Intel
Processor Type Xeon
Processor Model D-1541
Processor Core Octa-core (8 Core)
Processor Speed 2.10 GHz
Memory
Standard Memory 8 GB
Memory Technology DDR4 SDRAM
Network & Communication
Ethernet Technology 10 Gigabit Ethernet
Ethernet Technology Gigabit Ethernet
I/O Expansions
Number of Total Expansion Bays 12
Number of 2.5"/3.5" Bays 12
Total Number of Expansion Slots 2
Expansion Slot Type PCI Express 3.0 x8
Controllers
Controller Type Serial ATA
RAID Supported Yes
RAID Levels 0, 1, 5, 6, 10, Basic, JBOD, RAID F1
Interfaces/Ports
Total Number of USB Ports 2
Number of USB 3.2 Gen 1 Ports 2
Network (RJ-45) Yes
Number of Network (RJ-45) Ports 6
Software
Operating System DiskStation Manager
Management & Protocols
Protocols AFP
Protocols SMB 1.0
Protocols CalDAV
Protocols NFSv4.1
Protocols SNMP
Protocols WEBDAV
Protocols FTP
Protocols LDAP
Protocols NFSv3
Protocols HTTP
Protocols NFS
Protocols HTTPS
Protocols NFSv4
Protocols DLNA
Protocols CIFS
Protocols SMB 2.0
Protocols SMB 3.0
Protocols iSCSI
Power Description
Number of Power Supplies Installed 2
Maximum Power Supply Wattage 500 W
Redundant Power Supply Yes
Physical Characteristics
Height 3.5"
Width 19"
Depth 28.5"
Form Factor Rack-mountable
Rack Height 2U
Weight (Approximate) 31.97 lb
Miscellaneous
Country of Origin Taiwan
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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