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Black 2U rackmount NAS chassis with twelve drive bays and front status LEDs

Synology Inc.

Synology RS3626xs Xeon D-1726 12-bay rackmount NAS 8GB 240TB (12 x 20TB) 25GbE

SKU CH-BPB6-3MX29

A 12-bay rackmount NAS with Xeon D-1726 processor, 8GB DDR4 ECC memory, 240TB of Synology Enterprise 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 RAM8 GB
  • Drives included240 TB (12 × 20 TB)
  • Ready-to-deploy 240 TB storage with twelve 20 TB enterprise drives
  • 6-core Xeon D-1726 and 8 GB DDR4 ECC power demanding workloads
  • Dual 25 GbE SFP28 plus two 10 GbE RJ-45 for high-throughput networking
  • Two PCIe Gen 4 x8 slots enable future 25 GbE, Fibre Channel or SSD cache
  • Redundant power supplies protect uptime from single-unit failure

Synology RS3626xs 12-Bay Rackmount NAS

The Synology RS3626xs is a 12-bay 2U rackmount NAS built for enterprise storage workloads. It arrives fully assembled with twelve 20 TB Synology Enterprise drives for 240 TB raw capacity. A 6-core Intel Xeon D-1726 processor and 8 GB DDR4 ECC memory power file, virtualization and backup services. Dual redundant power supplies protect uptime against single-unit failure.

Who This Suits and Who Should Look Elsewhere

IT teams needing dense, high-capacity network storage with 25 GbE connectivity will match this configuration. The 12-bay chassis supports mixed 3.5-inch HDDs and 2.5-inch SATA SSDs for flexible media choices. Buyers requiring more than 48 GB memory, additional PCIe slots beyond two Gen 4 x8, or drive bays beyond twelve should evaluate larger platforms.

Deciding Specification 25 GbE SFP28 Connectivity

Two onboard 25 GbE SFP28 ports deliver high-throughput links for virtualization, backup replication and multi-user file access. Combined with dual 10 GbE RJ-45 ports, the network stack handles concurrent heavy workloads without a separate adapter. If the infrastructure tops out at 10 GbE or 1 GbE, the 25 GbE capability remains unused and a lower-speed model may fit better.

How it compares

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

Price $15,560.99
Pricier than about 89% of the 763 comparable items (median $6,564.99).

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Specifications

Product
Brand nameSynology
Model nameRS3626xs
Processor
CPUIntel Xeon
Memory
Installed RAM8 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 × 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

How do I install the Synology 2-Port 25GbE Adapter and what step is often missed?

The adapter fits into one of the two PCIe Gen 4 x8 slots; the step often missed is seating the SFP28 modules firmly until they click and then enabling the ports in DSM before cabling.

Which components will need replacement first under continuous operation?

The twelve 20 TB Synology Enterprise NAS drives are the primary wear items; the redundant power supplies and system fan are also field-replaceable units.

What performance limit appears first during sustained heavy workloads?

Sequential throughput tops out at 6 300 MB/s read and 3 700 MB/s write, so the 25 GbE link and drive array saturate before the Xeon D-1726 CPU does.

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