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Silver 2U rackmount NAS with twelve drive bays visible

Synology Inc.

Synology RS3626xs Intel Xeon D-1726 12-Bay Rackmount NAS 16GB RAM 3.2TB Cache 48TB Drives

SKU CH-JPG4-PWJ6X

A 12-bay rackmount NAS with Xeon processor, 16GB DDR4, 3.2TB cache and 48TB of enterprise drives, pre-assembled and tested

  • 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 RAM16 GB
  • Drives included48 TB (12 × 4 TB)
  • 12-bay density fits 48TB in 2U rack space
  • Xeon D-1726 6-core handles virtualization workloads
  • 2TB enterprise SSD cache accelerates hot data
  • Dual 10GbE ports enable link aggregation failover
  • Pre-assembled with 12 Synology 4TB drives

Synology RS3626xs 12-Bay Rackmount NAS

The Synology RS3626xs is a 2U rackmount network-attached storage server built for enterprise environments. It ships fully assembled with an Intel Xeon D-1726 processor, 16GB of DDR4 memory, 3.2TB of enterprise SSD cache, and twelve 4TB enterprise hard drives providing 48TB of raw capacity.

Installation and common issues

The unit arrives pre-configured and tested, so initial setup focuses on rack mounting and network integration. Two 10GbE RJ-45 ports and an out-of-band management LAN port simplify connectivity, while redundant power supplies reduce downtime risk. Builders without 10GbE infrastructure will not utilise the full network potential, and the fixed 16GB memory may limit heavy virtualization workloads.

Capacity headroom and limits

Twelve drive bays filled with 4TB drives deliver 48TB raw storage, supplemented by 3.2TB of high-speed cache for frequent data access. Sequential throughput exceeds 6,300 MB/s read and 3,700 MB/s write under test conditions. Two PCIe Gen 4 x8 slots allow future addition of faster networking or extra cache, but the installed drive set defines the immediate capacity ceiling.

How it compares

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

Price $12,208.99
Pricier than about 79% of the 763 comparable items (median $6,564.99).

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Specifications

Product
Brand nameSynology
Model nameRS3626xs
Processor
CPUIntel Xeon
Memory
Installed RAM16 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

How can I verify the RS3626xs is operating correctly after rack installation?

Check the front-panel Power, HDD and LAN LEDs; confirm the web-based management interface loads and shows all twelve 4 TB drives, the 3.2 TB cache and 16 GB DDR4 memory as healthy.

What ships with the unit and what must I source separately?

The box contains the 12-bay main unit, accessory pack, two C13-to-C14 power cords and the front cover; drives, cache modules and RAM are already installed, so no extra components are required for basic operation.

Which cache capacity matches the 3.2 TB configuration listed for this model?

The included cache consists of two 1.6 TB Synology Enterprise modules totalling 3.2 TB, matching the specification for this RS3626xs build.

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