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Silver 12-bay 2U rackmount NAS front panel with drive trays and status LEDs

Synology Inc.

Synology RS3626xs 12-Bay Rackmount NAS Xeon D-1726 48GB 3.2TB Cache 240TB Drives

SKU CH-R9QP-X1GX3

A 12-bay rackmount NAS with Xeon D-1726 processor, 48GB DDR4 RAM, 3.2TB cache and 240TB of SATA drives, fully assembled and tested

  • Port RJ-452 x RJ-45 10GbE LAN Port 1 x Out-of-Band Management LAN Port
  • Port USB2 x USB 3.2 Gen 1 Ports
  • Form Factor12-Bay
  • ProcessorIntel Xeon
  • Installed Memory48GB
  • Included HDD Capacity240TB (12 x 20TB)
  • 12-bay 2U rackmount NAS fits dense server rooms
  • 48 GB DDR4 ECC memory handles heavy virtualization workloads
  • 2 TB Synology Enterprise cache accelerates frequent data access
  • 240 TB raw capacity from twelve 20 TB enterprise drives
  • Dual 10 GbE RJ-45 ports enable link aggregation and failover

Enterprise 12-Bay Rackmount NAS

The Synology RS3626xs is a 2U rackmount network-attached storage server built for organisations that need high-capacity, centrally managed file storage and virtualization support. It ships fully assembled with twelve drive bays populated and cache modules installed.

Xeon D-1726 with 48GB DDR4 and 3.2TB Cache

A 6-core Intel Xeon D-1726 processor drives the system alongside 48GB of DDR4 ECC memory and two 1.6TB Synology Enterprise cache drives totalling 3.2TB. This combination determines whether the unit can handle your concurrent user count and application latency targets.

Sustained Sequential Throughput Under Load

Synology reports sequential performance exceeding 6,300 MB/s read and 3,700 MB/s write under its test conditions, indicating how the platform behaves during prolonged, heavy data transfers rather than brief bursts. The dual 10GbE RJ-45 ports with link aggregation support maintain bandwidth during extended sessions.

Highlights

  • 12-bay 2U rackmount NAS fits dense server rooms
  • 48 GB DDR4 ECC memory handles heavy virtualization workloads
  • 2 TB Synology Enterprise cache accelerates frequent data access
  • 240 TB raw capacity from twelve 20 TB enterprise drives
  • Dual 10 GbE RJ-45 ports enable link aggregation and failover

Specifications

BrandSynology
ModelRS3626xs
Port RJ-452 x RJ-45 10GbE LAN Port
1 x Out-of-Band Management LAN Port
Port USB2 x USB 3.2 Gen 1 Ports
Form Factor12-Bay
ProcessorIntel Xeon
Installed Memory48GB
Included HDD Capacity240TB (12 x 20TB)
ManagementWeb-Based, DHCP Client
LEDsPower, HDD (Hard Disk Drive), LAN (10/100)
Power100-240 VAC 50/60Hz
Temperature0°C to 35°C (32°F to 95°F)
Humidity8% to 80% RH
Dimensions88 mm × 482 mm × 724 mm
Weight14.5 kg
Package ContentsMain Unit × 1
Accessory Pack × 1
C13 to C14 power cord × 2
Front Cover × 1
All Configuration Items

Questions about this item

What does the 6,300 MB/s sequential read figure mean when the unit is in production?

That number comes from Synology's own test conditions; actual throughput will depend on the workload mix, drive layout, and network path in your environment.

What do the two integrated 10GbE RJ-45 ports cap in practice?

Each port runs at 10 Gb/s; with Link Aggregation you can combine them for higher aggregate bandwidth, load balancing, and failover.

What physical space and power does the 2U chassis need to fit in a rack?

The unit measures 88 mm high, 482 mm wide, 724 mm deep, weighs 14.5 kg, and runs on 100-240 VAC 50/60 Hz with two C13-to-C14 cords.

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