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Silver 2U rackmount chassis with twelve front drive bays and LCD status display

Synology Inc.

Synology RS3626xs Xeon D-1726 12-Bay Rackmount NAS 48GB 800GB Cache 48TB

SKU CH-14H9-HWER2

A 12-bay rackmount NAS with Xeon D-1726 processor, 48GB DDR4, 800GB cache and 48TB of 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 included48 TB (12 × 4 TB)
  • Powerful 6-core Intel Xeon D-1726 processor handles demanding business workloads
  • 48GB DDR4 ECC memory supports virtualization and multi-site collaboration
  • 800GB Synology Enterprise cache accelerates data access for intensive applications
  • 48TB pre-installed enterprise drives deliver high-capacity storage out of the box
  • Dual 10GbE RJ-45 ports with Link Aggregation enable fast network throughput

12-Bay Rackmount NAS with Xeon D-1726

The Synology RS3626xs is a 2U rackmount network-attached storage server built around a 6-core Intel Xeon D-1726 processor. It ships fully assembled with 48GB of DDR4 ECC memory, 800GB of enterprise SSD cache, and twelve 4TB Synology Enterprise drives providing 48TB of raw capacity. This configuration targets businesses needing centralized file storage, virtualization, or backup in a single validated appliance.

Pre-deployment checklist

Verify that your rack provides a 2U slot with at least 724mm of usable depth and can support 14.5kg of equipment weight. Confirm the site operates within 0°C to 35°C ambient temperature and 8% to 80% relative humidity. Ensure two C13 power outlets are available for the redundant 100-240 VAC supplies and that your network infrastructure can terminate two 10GbE RJ-45 links plus the dedicated out-of-band management port.

Integration into the rack

The unit occupies 88mm of vertical rack space and 482mm width, leaving the two PCIe Gen 4 x8 slots accessible for future 10GbE, 25GbE, or Fibre Channel adapters. Twelve front-accessible drive bays accept 3.5-inch SATA HDDs or 2.5-inch SATA SSDs, while the pre-installed cache and memory free internal DIMM and M.2 slots for other upgrades. Dual USB 3.2 Gen 1 ports on the rear simplify local backup or peripheral attachment without consuming PCIe lanes.

How it compares

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

Price $13,047.99
Pricier than about 81% 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
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 ship with drives and cache installed or must I purchase them separately?

The unit arrives with twelve 4TB Synology Enterprise NAS drives and two 400GB Synology Enterprise cache modules pre-installed, so no separate drive purchase is required.

Which memory capacity should I select for virtualization workloads on the RS3626xs?

The system includes 48GB of DDR4 ECC memory, the maximum supported configuration, which is ready for virtualization without further upgrades.

What do the published 6,300 MB/s read and 3,700 MB/s write figures mean for daily file transfers on the RS3626xs?

Those sequential speeds were measured under Synology test conditions; real-world file transfers will be lower and depend on network topology, client hardware and RAID layout.

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