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Synology Inc.

Synology RS1626xs+ Intel Xeon D-1726 4-Bay Rackmount NAS 16GB 3.2TB Cache 64TB Drives

SKU CH-FQZQ-J7A6T

A 4-bay rackmount NAS with an Intel Xeon D-1726 processor, 16GB memory, 3.2TB NVMe cache and 64TB of enterprise drives, fully assembled and tested

  • 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 Factor4-Bay
  • ProcessorIntel Xeon
  • Installed Memory16GB
  • Included HDD Capacity64TB (4 x 16TB)
  • Intel Xeon D-1726 6-core processor powers virtualization and file sharing
  • Dual 10GbE RJ-45 ports plus 1GbE management LAN enable high-speed networking
  • 16GB DDR4 ECC memory scales to 64GB for demanding workloads
  • 2TB NVMe cache accelerates read and write performance
  • 64TB Synology Enterprise drives pre-installed in four bays

4-Bay Xeon Rackmount NAS

The Synology RS1626xs+ is a 1U rackmount NAS powered by an Intel Xeon D-1726 processor with 16GB DDR4 memory. It arrives fully assembled with 64TB of Synology Enterprise drives and 3.2TB of NVMe cache. This system targets businesses that need immediate, high-capacity storage for virtualization, file sharing, and backup workloads without manual setup.

Upgrade from slower NAS

This unit replaces older 1GbE appliances or software-based servers that saturate under multi-user loads. The dual 10GbE RJ-45 ports remove the network bottleneck for VM storage and large dataset transfers. The jump is worth it when current infrastructure cannot saturate a 10GbE link or when ECC memory becomes mandatory for data integrity in production environments.

Rack installation and cache limits

The 1U chassis mounts in standard racks using the included rails and dual C13 power cords. Web-based management handles initial configuration and DSM deployment. The two M.2 slots are populated with the supplied 1.6TB cache modules, so further cache expansion requires drive replacement. Buyers needing more than four drive bays must add a compatible Synology expansion unit.

Highlights

  • Intel Xeon D-1726 6-core processor powers virtualization and file sharing
  • Dual 10GbE RJ-45 ports plus 1GbE management LAN enable high-speed networking
  • 16GB DDR4 ECC memory scales to 64GB for demanding workloads
  • 2TB NVMe cache accelerates read and write performance
  • 64TB Synology Enterprise drives pre-installed in four bays

Specifications

BrandSynology
ModelRS1626xs+
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 Factor4-Bay
ProcessorIntel Xeon
Installed Memory16GB
Included HDD Capacity64TB (4 x 16TB)
ManagementWeb-Based, DHCP Client
LEDsPower, HDD (Hard Disk Drive), LAN (10/100)
Power100-240 VAC 50/60Hz
Temperature5°C - 35 °C
Humidity8% to 80% RH
Dimensions44 mm × 481.9 mm × 668.5 mm
Weight9.5 kg
Package ContentsMain Unit × 1
Accessory Pack × 1
C13 to C14 power cord × 2
Front Cover × 1
All Configuration Items

Questions about this item

How much rack depth is required for the 44 mm high RS1626xs+?

The unit is 668.5 mm deep, so allow at least that much usable rack depth plus cable clearance behind the rear RJ-45 and power connections.

What is the correct order for seating the 16 TB enterprise drives and the 1.6 TB NVMe cache modules?

Install the four 3.5-inch drives in the front hot-swap bays first, then insert the two M.2 NVMe cache modules into the internal slots before powering on.

Which components in the RS1626xs+ will need replacement after several years of continuous operation?

The four 16 TB enterprise drives and the two 1.6 TB NVMe cache modules are the primary wear items; the 16 GB DDR4 ECC memory and Xeon D-1726 processor are not user-serviceable.

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