Synology RackStation RS3621RPxs

High-performance data management solution designed for business-oriented needs.

Compute

Intel^® Xeon^® D-1531 6-core 2.2 GHz

Throughput

4,718 MB/s seq. read 189,098 4K random read IOPS

Expandability

Dual PCIe slots for 10GbE or NVMe cache

Scalability

Up to 36 drive bays with RX1217(RP)

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. Learn more

Next-generation file system

Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots. Learn more

Customize to suit

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

Works best with Synology drives

RackStation RS3621RPxs

5-year warranty

At Synology, we are committed to product innovation and quality. The RS3621RPxs is backed by a 5-year limited warranty that includes technical support and hardware replacement services to maximize your return on investment. Learn more

Hardware Specifications

CPU	CPU Model	Intel Xeon D-1531
	CPU Quantity	1
	CPU Architecture	64-bit
	CPU Frequency	6-core 2.2 (base) / 2.7 (turbo) GHz
	Hardware Encryption Engine (AES-NI)
Memory	System Memory	8 GB DDR4 ECC UDIMM
	Memory Module Pre-installed	8 GB (8 GB x 1)
	Total Memory Slots	4
	Maximum Memory Capacity	64 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 Bays	12
	Maximum Drive Bays with Expansion Unit	36 (RX1217/RX1217RP x 2)
	Compatible Drive Type* (See all supported drives)	3.5" SATA HDD 2.5" SATA SSD
	Hot Swappable Drive*
	Notes	Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability. "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 Port	4 (with Link Aggregation / Failover support)
	USB 3.2 Gen 1 Port*	2
	Expansion Port	2
	Notes	The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
PCIe	PCIe Expansion	2 x Gen3 x8 slots (x8 link)
Appearance	Form Factor (RU)	2U
	Size (Height x Width x Depth)	88 mm x 482 mm x 724 mm
	Weight	14.5 kg
	Rack Installation Support*	4-post 19" rack (Synology Rail Kit - RKS-02)
	Notes	The rail kit is sold separately
Others	System Fan	80 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 / Adapter	500 W 550 W
	Redundant Power Supply
	AC Input Power Voltage	100 V to 240 V AC
	Power Frequency	50/60 Hz, Single Phase
	Power Consumption	140.01 W (Access) 65.94 W (HDD Hibernation)
	British Thermal Unit	477.43 BTU/hr (Access) 224.86 BTU/hr (HDD Hibernation)
	Notes	Power supply specifications may differ based on the hardware revision of the device. For more information, refer to the Product Change Notice. 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 Temperature	0°C to 35°C (32°F to 95°F)
	Storage Temperature	-20°C to 60°C (-5°F to 140°F)
	Relative Humidity	5% to 95% RH
Certification	FCC CE BSMI VCCI RCM EAC CCC KC UL
Warranty	5 Years
	Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment	RoHS Compliant
Packaging Content	Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Quick Installation Guide X 1
Optional Accessories	DDR4 ECC UDIMM: D4EC-2666-8G/D4EC-2666-16G Expansion Units: RX1217/RX1217RP Enterprise Series 3.5" SATA HDD: HAT5300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1 M.2 SSD Adapter Card: M2D20 25GbE Network Interface Card: E25G30-F2 10GbE Network Interface Card: E10G21-F2/E10G30-T2/E10G18-T1 Rail Kit Sliding: RKS-02
	Notes	All memory modules will operate at the maximum frequency specified by the CPU manufacturer.