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Silver 2U rackmount chassis with twelve front drive bays and front cover installed

Synology Inc.

Synology Inc. RS3626xs Xeon D-1726 12-Bay Rackmount NAS 16GB 48TB 25GbE

SKU CH-R9AS-DR3SD

A 12-bay rackmount NAS with a Xeon D-1726 processor, 16GB DDR4 memory, 48TB of SATA drives and dual 25GbE SFP28 ports

  • 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 scales capacity to 48 TB in a compact 2U rack
  • Xeon D-1726 6-core processor powers virtualization and multi-site workloads
  • 16 GB DDR4 ECC memory ensures data integrity for critical apps
  • Dual 25 GbE SFP28 ports plus two 10 GbE RJ-45 deliver high-throughput networking
  • Redundant power supplies protect uptime from single-supply failure

12-bay Xeon rackmount NAS

The Synology RS3626xs is a 2U rackmount NAS populated with twelve 4 TB enterprise SATA drives for 48 TB of raw capacity. A 6-core Intel Xeon D-1726 processor and 16 GB of DDR4 ECC memory drive file, virtualization and surveillance workloads. Dual redundant power supplies and a dedicated out-of-band management port support continuous operation in business environments.

IT teams needing dense 10 GbE

Two onboard 10 GbE RJ-45 ports and a factory-installed dual-port 25 GbE SFP28 adapter deliver high-throughput networking for virtualization hosts and backup targets. Two PCIe Gen 4 x8 slots remain open for additional network or storage controllers. Buyers who need more than 12 drive bays or a higher base memory configuration should evaluate larger chassis models.

48 TB of pre-installed enterprise SATA storage

The unit ships with twelve Synology 4 TB enterprise SATA drives fully assembled and tested, presenting a single 48 TB volume candidate ready for RAID configuration. Drives occupy every bay, so capacity expansion requires an external expansion unit or drive replacement. This specification determines whether the appliance meets immediate storage-footprint requirements.

How it compares

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

Price $10,558.99
Pricier than about 72% 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
2 × 25GbE SFP28
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 network speeds do the two SFP28 ports on the 25GbE adapter support?

The two SFP28 ports on the included 25GbE adapter provide 25GbE connectivity for high-throughput workloads.

What rack depth and drive form factors does the 12-bay chassis accommodate?

The 2U chassis measures 724 mm deep and accepts twelve 3.5-inch SATA HDDs or 2.5-inch SATA SSDs.

How do I add the 25GbE adapter, and what slot mistake should I avoid?

Install the adapter in one of the two PCIe Gen 4 x8 slots; using a different slot type will prevent it from functioning.

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