Synology RS1626xs+

Enterprise-Grade Performance and Scalability in a Slim 1U Chassis

The RS1626xs+ is an all-in-one solution for central data management, backup, and surveillance. Designed to grow with your business, it offers SSD caching support without using up drive bays with two internal M.2 slots and scalable capacity via a RX1225RP 12-bay expansion unit. A full suite of reliability, availability, and serviceability features ensures continuous operation.

Solid Performance : Over 84,000 4K random write IOPS and 2,100/1,500 MB/s sequential read/write throughput supports office-wide applications
On-Demand Expansion : Scale up to 16 drive bays with one Synology RX1225RP Expansion Unit
Versatile Networking : Dual 10GbE ports and PCIe expansion for additional high-speed network ports
Availability Safeguards : Hot-swappable drives, online volume expansion, dual power supplies, and high-availability clustering help keep services online
Storage Tiering : Automatically offload inactive data to lower-cost tiers to optimize storage ROI and preserve high-performance storage for active workloads

Specifications :

Hardware Specifications
CPU	CPU Model	Intel Xeon D-1726
	CPU Quantity	1
	CPU Cores	6
	CPU Threads	12
	CPU Architecture	64-bit
	CPU Frequency	2.9 (base) / 3.5 (turbo) GHz
	Hardware Encryption Engine
Memory	System Memory	16 GB DDR4 ECC RDIMM
	Memory Module Pre-installed	16 GB (16 GB × 1)
	Total Memory Slots	4
	Maximum Memory Capacity	64 GB (16 GB × 4)
	Notes	Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and 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 multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.
Storage	Drive Bays (See all supported drives)	4 × 3.5″ SATA HDD or 2.5″ SATA SSD 2 × M.2 2280 NVMe SSD
	Maximum Drive Bays with Expansion Unit	16 (RX1225RP × 1)
	Hot Swappable Drive*
	Notes	The hot swappable drive feature is not supported by M.2 SSD slots. Compatible drives are mandatory. Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article. SSD cache can be enabled with select compatible SSD. See the compatibility list for model-specific support and details. SSDs are sold separately.
External Ports	RJ-45 10GbE LAN Port	2
	Out-of-Band Management LAN Port	1
	USB 3.2 Gen 1 Port	2
	Expansion Port	1
	Expansion Port Type	Mini-SAS HD
PCIe	PCIe Expansion	1 × Gen4 x8 slot (x8 link)
Appearance	Form Factor (RU)	1U
	Size (Height × Width × Depth)	44 mm × 481.9 mm × 668.5 mm
	Weight	9.5 kg
	Rack Installation Support*	4-post 19″ rack (Synology Rail Kit – RKS-04)
	Notes	The rail kit is sold separately
Others	System Fan	40 mm × 40 mm × 4 pcs
	Fan Speed Mode	Full-Speed Mode Cool Mode Quiet Mode
	Easy Replacement System Fan
	Power Recovery
	Noise Level	52.6 dB(A)
	Scheduled Power On / Off
	Wake on LAN / WAN
	Power Supply Unit / Adapter	250 watts
	Redundant Power Supply
	AC Input Power Voltage	100V to 240V AC
	Power Frequency	50/60 Hz, Single Phase
	Power Consumption	97.59 watts (Access) 56.19 watts (HDD Hibernation)
	British Thermal Unit	332.78 BTU/hr (Access) 191.61 BTU/hr (HDD Hibernation)
	Notes	For more information on how power consumption is measured, refer to this article. Noise testing was conducted with the Synology system fully installed with Synology SATA SSDs and in an idle state. Two G.R.A.S. type 40AE microphones were placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%.
Temperature	Operating Temperature	5°C to 35°C (32°F to 95°F)
	Storage Temperature	-20°C to 60°C (-5°F to 140°F)
	Operating Humidity	8% to 80% RH
	Storage Humidity	5% to 95% RH
Certification	FCC CE BSMI VCCI RCM UKCA EAC CCC KC BIS 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 × 1 Accessory Pack × 1 C13 to C14 power cord × 2 Front Cover × 1
Optional Accessories	DDR4 ECC RDIMM: D4ER02-16G Expansion Units: RX1225RP Enterprise Series 3.5″ SATA HDD: HAT5300 Series Enterprise Series 2.5″ SATA SSD: SAT5200 Series Enterprise Series M.2 2280 NVMe SSD: SNV3400 & SNV5400 Series 25GbE Network Interface Card: E25G30-F2 10GbE Network Interface Card: E10G30-F2/E10G30-T2/E10G30-T1 Rail Kit Sliding: RKS-04