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Silver 2U rackmount chassis with twelve front drive bays, front cover attached

Synology Inc.

Synology RS3626xs 12-Bay Rackmount NAS 48GB 240TB 25GbE

SKU CH-VR9N-ET04B

A 12-bay rackmount NAS with 48GB DDR4, dual 25GbE SFP28 and 240TB of Synology Enterprise drives pre-installed

  • 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 included240 TB (12 × 20 TB)
  • 12-bay rackmount NAS scales to 240 TB raw capacity
  • 48 GB DDR4 ECC memory handles demanding virtualization workloads
  • Dual 25 GbE SFP28 ports deliver high-throughput network connectivity
  • Intel Xeon D-1726 6-core processor powers multi-service business applications
  • Fully assembled and tested with 12 × 20 TB enterprise drives

Rackmount NAS with 25GbE and 240TB

The Synology RS3626xs is a 2U rackmount network-attached storage system pre-configured with twelve 20TB enterprise SATA drives. It ships fully assembled with 48GB of DDR4 memory and a dual-port 25GbE SFP28 adapter installed. An Intel Xeon D-1726 processor powers the unit for demanding business workloads.

Suited for high-capacity file storage

This system suits organisations that need a single appliance for centralised file storage, backup and virtualisation with high-throughput 25GbE connectivity. It is not suited for buyers who need desktop form factors or expansion beyond twelve drive bays. The fixed 48GB memory configuration also limits users who require larger RAM allocations.

Twelve-bay capacity with dual 25GbE ports

The defining specification is the combination of twelve 3.5-inch SATA bays populated with 240TB of raw capacity and the included two-port 25GbE SFP28 adapter. This density and network speed determine whether the RS3626xs matches the performance and scale requirements of the target deployment.

How it compares

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

Price $18,153.99
Pricier than about 91% 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 included240 TB (12 × 20 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

Does the RS3626xs arrive with every drive, the 25GbE adapter and the 48 GB of memory already installed?

Yes, the unit ships with twelve 20 TB Synology Enterprise drives, a Synology 2-port 25GbE adapter and 48 GB of DDR4 ECC RAM, all assembled and tested before delivery.

Should I pick the 10 GbE RJ-45 ports or the 25 GbE SFP28 ports for the fastest file transfers?

The two 25 GbE SFP28 ports provide the highest throughput; use them with compatible switches and DAC or fibre cables for peak sequential speeds.

The spec sheet quotes 6 300 MB/s read and 3 700 MB/s write — will I see those numbers over a single 10 GbE link?

Those sequential figures were measured with aggregated 25 GbE connections under Synology test conditions; a single 10 GbE link will deliver lower real-world throughput.

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