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Synology Inc.

Synology RS3626xs Xeon D-1726 12-Bay Rackmount NAS 48GB 192TB 25GbE

SKU CH-15T7-P1E18

A 12-bay 2U rackmount NAS with Xeon D-1726 CPU, 48GB DDR4, dual 25GbE SFP28 and 192TB of Synology Enterprise drives pre-installed

  • Port RJ-452 x RJ-45 10GbE LAN Port 1 x Out-of-Band Management LAN Port
  • Port USB2 x USB 3.2 Gen 1 Ports
  • Form Factor12-Bay
  • ProcessorIntel Xeon
  • Installed Memory48GB
  • Included HDD Capacity192TB (12 x 16TB)
  • 12-bay rackmount design scales storage to 192TB with included enterprise drives
  • Xeon D-1726 6-core processor handles demanding virtualization and multi-site workloads
  • 48GB DDR4 ECC memory ensures data integrity during intensive file operations
  • Dual 25GbE SFP28 ports deliver high-throughput connectivity for bandwidth-heavy applications
  • Redundant power supplies protect service availability from single power-supply failure

Enterprise 12-bay rackmount NAS

The Synology RS3626xs is a 2U rackmount storage server built around a 6-core Intel Xeon D-1726 processor. It arrives fully assembled with 48GB of DDR4 ECC memory and twelve 16TB Synology Enterprise SATA drives for 192TB of raw capacity. Integrated 10GbE RJ-45 ports and an included dual-port 25GbE SFP28 adapter provide high-throughput networking for virtualization, backup and multi-site collaboration workloads.

Upgrade from slower or smaller arrays

This unit replaces older NAS appliances limited to 1GbE uplinks, lower drive counts or non-ECC memory. The jump is worth it when workloads demand sustained sequential throughput above 6,300 MB/s read or 3,700 MB/s write, or when 25GbE connectivity is required for hypervisor clusters and intensive backup windows. Two PCIe Gen 4 x8 slots remain open for future cache or networking expansion.

Straightforward rack deployment

The chassis slides into a standard 19-inch rack using the included rails and dual C13-to-C14 power cords. Drives and memory are pre-installed and validated, so initial setup is limited to network configuration through the web-based management interface. Installers should verify rack depth clearance for the 724 mm chassis and confirm ambient temperature stays within the 0°C to 35°C operating range.

Highlights

  • 12-bay rackmount design scales storage to 192TB with included enterprise drives
  • Xeon D-1726 6-core processor handles demanding virtualization and multi-site workloads
  • 48GB DDR4 ECC memory ensures data integrity during intensive file operations
  • Dual 25GbE SFP28 ports deliver high-throughput connectivity for bandwidth-heavy applications
  • Redundant power supplies protect service availability from single power-supply failure

Specifications

BrandSynology
ModelRS3626xs
Port RJ-452 x RJ-45 10GbE LAN Port
1 x Out-of-Band Management LAN Port
2 x 25GbE SFP28
Port USB2 x USB 3.2 Gen 1 Ports
Form Factor12-Bay
ProcessorIntel Xeon
Installed Memory48GB
Included HDD Capacity192TB (12 x 16TB)
ManagementWeb-Based, DHCP Client
LEDsPower, HDD (Hard Disk Drive), LAN (10/100)
Power100-240 VAC 50/60Hz
Temperature0°C to 35°C (32°F to 95°F)
Humidity8% to 80% RH
Dimensions88 mm × 482 mm × 724 mm
Weight14.5 kg
Package ContentsMain Unit × 1
Accessory Pack × 1
C13 to C14 power cord × 2
Front Cover × 1
All Configuration Items

Questions about this item

What rack depth does the 724 mm deep RS3626xs require?

The chassis is 724 mm deep, so a rack with at least that depth is needed for the unit to seat fully.

How is the included 25GbE adapter installed, and what step is often missed?

Insert the adapter into a PCIe Gen 4 x8 slot, secure the bracket screw, then attach the SFP28 cables before powering on.

When will the twelve 16TB Synology Enterprise drives need replacement?

Replace any drive that SMART reports as degraded or that the DSM storage pool marks as failed.

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