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Black 2U rackmount server with twelve drive bays visible behind front panel

Synology Inc.

Synology RS3626xs Intel Xeon D-1726 12-Bay Rackmount NAS 48GB 240TB

SKU CH-WEXQ-FJWST

A 12-bay rackmount NAS with Intel Xeon D-1726 processor, 48GB DDR4 RAM, dual 10GbE ports 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 2U rackmount design fits dense server rooms
  • 6-core Intel Xeon D-1726 processor handles demanding business workloads
  • 48GB DDR4 ECC memory supports virtualization and multi-user access
  • Two integrated 10GbE ports enable high-speed network throughput
  • 240TB of Synology Enterprise drives pre-installed and tested

Synology RS3626xs 12-bay rackmount NAS

The Synology RS3626xs is a 2U rackmount network-attached storage server built for enterprise workloads. It ships fully assembled with a 6-core Intel Xeon D-1726 processor, 48GB of DDR4 ECC memory, and twelve 20TB Synology Enterprise SATA drives installed for 240TB of raw capacity. The unit includes a Synology 2-port 10GbE RJ-45 adapter and redundant power supplies for service continuity.

Replaces slower 1GbE storage

This system replaces 1GbE-connected NAS appliances or direct-attached storage that cannot sustain multi-user throughput. The dual 10GbE ports support link aggregation and failover, while the Xeon D-1726 handles virtualization and multi-site collaboration tasks. Sequential read performance reaches 6300 MB/s and write reaches 3700 MB/s under Synology test conditions, making the jump worthwhile when consolidated file services, backup targets, or surveillance archives exceed current platform limits.

Tool-less drive trays and PCIe Gen 4 x8 slots

Twelve hot-swappable trays accept 3.5-inch SATA HDDs or 2.5-inch SATA SSDs without tools. Two PCIe Gen 4 x8 slots allow adding compatible 10GbE, 25GbE, or Fibre Channel adapters and SSD caching hardware. Common issues include forgetting to seat the 10GbE adapter firmly in its slot, neglecting to configure link aggregation on the switch side, and exceeding the 35°C operating temperature limit in poorly ventilated racks.

How it compares

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

Price $20,978.99
Pricier than about 92% 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 × 10GbE 10GBASE-T
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

What rack depth and width does the RS3626xs 12-bay unit require?

The chassis measures 482 mm wide and 724 mm deep, so the rack must accept that width and provide at least 724 mm of usable depth plus cable clearance.

Which drive sizes and bays are used for the 240 TB factory load?

Twelve 3.5-inch SATA bays are populated with twelve 20 TB enterprise drives, delivering 240 TB total capacity.

How do I expand memory beyond the installed 48 GB DDR4?

The system ships with 48 GB DDR4 ECC memory; further expansion is handled through the motherboard DIMM slots using compatible DDR4 modules.

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