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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

  • 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 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.

How it compares

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

Price $20,948.99
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
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 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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