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Black 2U rackmount chassis with twelve front drive bays and silver handles

Synology Inc.

Synology RS3626xs 12-Bay Rackmount NAS 16GB 240TB (12 x 20TB)

SKU CH-48R8-NWA87

Twelve-bay rackmount NAS with 240 TB of enterprise drives, 16 GB DDR4 RAM and dual 10GbE ports for high-throughput file, virtualization and backup workloads

  • 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 included240 TB (12 × 20 TB)
  • Ready-to-deploy system fully assembled and tested
  • Six-core Intel Xeon D-1726 processor powers demanding workloads
  • Two integrated 10GbE RJ-45 ports enable high-speed networking
  • Twelve 20TB Synology Enterprise drives deliver 240TB raw capacity
  • Expandable memory up to 48GB DDR4 ECC for growth

Enterprise 12-Bay Rackmount NAS

The Synology RS3626xs is a 2U rackmount network-attached storage server populated with twelve 20 TB SATA enterprise drives for 240 TB raw capacity. It ships fully assembled and tested with 16 GB of DDR4 ECC memory and a 6-core Intel Xeon D-1726 processor. The platform targets organisations that need centralised file storage, virtualisation hosting, or multi-site collaboration in a single chassis.

Sustained 10GbE throughput

Dual integrated 10GbE RJ-45 ports support Link Aggregation so bandwidth scales across both links during prolonged transfers rather than peaking in short bursts. Synology quotes sequential rates above 6,300 MB/s read and 3,700 MB/s write under its test conditions, and the Xeon D-1726 maintains consistent performance across virtualisation and surveillance workloads. Redundant power supplies keep the array online if one unit fails.

Rack depth and expansion planning

The unit measures 724 mm deep, so confirm your cabinet provides adequate clearance for cabling and airflow behind the rear panel. Two PCIe Gen 4 x8 slots are available for additional 10GbE, 25GbE or Fibre Channel adapters, but verify card length against the chassis interior before ordering. Memory can be expanded to 48 GB using compatible DDR4 ECC modules if workloads demand more than the installed 16 GB.

How it compares

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

Price $15,702.99
Pricier than about 90% 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 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

How loud and hot does the RS3626xs get when running 24/7?

The RS3626xs operates in 0°C to 35°C ambient temperature and 8% to 80% humidity. Redundant power supplies and 12 enterprise drives share the 2U chassis airflow; Synology does not publish a decibel figure.

Which cables and network gear must I already have to connect the two 10GbE ports?

Two RJ-45 10GbE LAN ports require Cat6a or better copper cabling and a 10GbE-capable switch; the box includes two C13-to-C14 power cords for the redundant PSUs.

Can I keep using my existing 3.5-inch SATA drives in the remaining bays?

All 12 bays are filled with 20TB Synology Enterprise SATA HDDs; the chassis accepts 3.5-inch SATA HDDs or 2.5-inch SATA SSDs, so no empty bays remain for older drives.

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