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Silver 2U rackmount chassis with twelve front drive bays and dual power supplies

Synology Inc.

Synology RS3626xs Xeon D-1726 12-Bay 8GB 48TB rackmount NAS

SKU CH-VB8Q-ZNDN1

A 12-bay rackmount NAS with Xeon D-1726 processor, 8GB DDR4 ECC memory, 48TB of enterprise drives, dual 10GbE ports and redundant power supplies

  • 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 included48 TB (12 × 4 TB)
  • 12-bay density scales storage to 48 TB with included enterprise drives
  • Xeon D-1726 six-core processor handles virtualization and multi-user workloads
  • Dual 10GbE RJ-45 ports deliver high-throughput networking out of the box
  • Redundant power supplies protect uptime against single-unit failure
  • Two PCIe Gen 4 x8 slots allow future 25GbE or SSD cache upgrades

RS3626xs 12-Bay Rackmount NAS

The Synology RS3626xs is a 2U rackmount network-attached storage server built for enterprise workloads. It ships fully assembled with twelve 4TB Synology Enterprise drives providing 48TB of raw capacity. A 6-core Intel Xeon D-1726 processor and 8GB of DDR4 ECC memory drive file, virtualization, and surveillance tasks. Redundant power supplies protect service availability.

Suits teams needing 10GbE throughput

Organisations that want integrated 10GbE RJ-45 ports, Link Aggregation, and PCIe Gen 4 expansion for future network or cache cards will benefit. Buyers who require 25GbE networking from day one should verify immediate adapter compatibility. Environments outside the 0°C to 35°C operating range need alternative ruggedised hardware.

Two 10GbE RJ-45 ports define baseline network speed

Dual 10GbE LAN ports deliver sequential reads above 6,300 MB/s and writes above 3,700 MB/s under Synology test conditions. Two PCIe Gen 4 x8 slots allow adding compatible 10GbE, 25GbE, or Fibre Channel adapters later. The single spec that decides fit is whether your current infrastructure runs on 10GbE copper.

How it compares

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

Price $8,972.99
Pricier than about 65% 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 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
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

Should I pick the 8 GB base memory or expand toward the 48 GB maximum?

The unit ships with 8 GB of DDR4 ECC memory installed and supports expansion up to 48 GB; add modules if you run virtual machines or heavy databases, otherwise the factory amount handles typical file and backup workloads.

What does the quoted 6 300 MB/s read and 3 700 MB/s write mean for daily use?

Those are Synology's sequential benchmarks under specific test conditions; real-world speeds will be lower and depend on drive mix, RAID level, network congestion and the workload's random-versus-sequential balance.

How do the two 10GbE RJ-45 ports limit network throughput?

Each port caps at 10 Gb/s; link aggregation can combine them for load balancing and failover, but a single stream cannot exceed one 10 Gb/s link unless a faster adapter is added via the PCIe Gen 4 x8 slots.

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