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Silver 2U rackmount NAS with twelve drive bays and front panel LEDs

Synology Inc.

Synology RS3626xs 12-bay rackmount NAS Xeon D-1726 48GB 48TB 25GbE

SKU CH-2Z10-TJC6J

A 12-bay rackmount NAS with Xeon D-1726 processor, 48GB DDR4 RAM, 48TB of SATA drives and dual 25GbE ports

  • CPUIntel Xeon
  • Form factor12-Bay
  • LAN ports2 x RJ-45 10GbE LAN Port 1 x Out-of-Band Management LAN Port
  • USB ports2 x USB 3.2 Gen 1 Ports
  • Installed RAM48 GB
  • Drives included48 TB (12 × 4 TB)
  • Powerful 6-core Xeon D-1726 handles demanding workloads
  • 48 GB DDR4 ECC memory scales to heavy multitasking
  • 48 TB from twelve 4 TB enterprise drives
  • Dual 25 GbE SFP28 ports plus two 10 GbE RJ-45 links
  • 2U rackmount with redundant power supplies for uptime

Enterprise rackmount NAS with Xeon D-1726

The Synology RS3626xs is a 12-bay 2U rackmount NAS built around a 6-core Intel Xeon D-1726 processor and 48GB of DDR4 ECC memory. It arrives fully assembled with twelve 4TB Synology Enterprise drives for 48TB of raw capacity. The system targets businesses that need centralised file storage, virtualization support, and multi-site collaboration in a single validated platform.

Capacity and 25GbE headroom

Twelve drive bays filled with 4TB SATA drives provide 48TB before RAID overhead; usable space depends on the chosen protection level. Two onboard 10GbE RJ-45 ports and a supplied dual-port 25GbE SFP28 adapter deliver high-throughput networking for demanding workloads. Synology cites sequential reads beyond 6,300 MB/s and writes beyond 3,700 MB/s under its test conditions, though sustained performance will vary with RAID type, drive health, and network path. The unit operates between 0°C and 35°C.

Bundled adapter and drives

A Synology 2-port 25GbE SFP28 adapter is included, occupying one of two PCIe Gen 4 x8 slots and leaving the second free for future expansion such as additional networking or SSD caching. Twelve Synology Enterprise 4TB drives are pre-installed and the system is tested before shipment. The package also supplies two C13 to C14 power cords, a front cover, and an accessory pack for rack mounting.

How it compares

Measured against everything we stock in Rack-Mounted NAS Servers, at today’s prices. Recalculated every night.

Price $13,792.99
Pricier than about 84% of the 763 comparable items (median $6,564.99).

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Specifications

Product
Brand nameSynology
Model nameRS3626xs
Processor
CPUIntel Xeon
Memory
Installed RAM48 GB
Storage
Drives included48 TB (12 × 4 TB)
Connectivity
Management optionsWeb-Based, DHCP Client
Ports & slots
LAN ports2 x RJ-45 10GbE LAN Port
1 x Out-of-Band Management LAN Port
2 × 25GbE SFP28
USB ports2 x USB 3.2 Gen 1 Ports
Power
Power details100-240 VAC 50/60 Hz
Size & build
Form factor12-Bay
Product dimensions88 mm × 482 mm × 724 mm
Product weight14.5 kg
In the box
In the boxMain Unit × 1
Accessory Pack × 1
C13 to C14 power cord × 2
Front Cover × 1
All Configuration Items
Environment & compliance
Temperature range0 °C to 35 °C (32 °F to 95 °F)
Humidity range8% to 80% RH
More details
Indicator lightsPower, HDD (Hard Disk Drive), LAN (10/100)

Questions about this item

Will the RS3626xs 12-bay chassis accept the 3.5-inch SATA drives I already own?

Yes, the twelve bays support 3.5-inch SATA HDDs so your existing drives can be installed directly.

How can I verify the two 25GbE SFP28 ports and the 10GbE RJ-45 ports are linked at full speed after installation?

Check the front LAN LEDs and the DSM network interface page; both show active link speed for each 10GbE RJ-45 and 25GbE SFP28 port.

Does the package include the twelve 4TB enterprise drives and the 2-port 25GbE adapter, or must I buy them separately?

The box contains the main unit, twelve 4TB Synology Enterprise NAS drives pre-installed, the Synology 2-port 25GbE adapter, two C13-to-C14 power cords, a front cover and an accessory pack.

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