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Silver 1U rackmount NAS, four drive bays, front LEDs, rear ports visible

Synology Inc.

Synology RS1626xs+ Xeon D-1726 4-Bay Rackmount NAS 16GB 48TB

SKU CH-NRNP-D2KSR

A 4-bay rackmount NAS with Xeon D-1726 processor, 16GB DDR4, dual 10GbE ports and 48TB of pre-installed enterprise drives, fully assembled and tested

  • Port RJ-452 x RJ-45 10GbE LAN Ports 2 x RJ-45 10GbE LAN Ports via Syno
  • Port USB2 x USB 3.2 Gen 1 Ports
  • Form Factor4-Bay
  • ProcessorIntel Xeon
  • Installed Memory16GB
  • Included HDD Capacity48TB (4 x 12TB)
  • Intel Xeon D-1726 powers virtualization and heavy workloads
  • 16GB DDR4 ECC memory protects data integrity under load
  • Dual 10GbE RJ-45 ports deliver high-speed network throughput
  • Four 12TB enterprise drives provide 48TB raw capacity out of the box
  • M.2 NVMe slots and PCIe Gen4 x8 enable cache and expansion

4-Bay Rackmount NAS with Xeon D-1726

The Synology RS1626xs+ is a 1U rackmount network-attached storage server built around an Intel Xeon D-1726 six-core processor. It ships fully assembled with 16GB of DDR4 ECC memory and four 12TB Synology Enterprise drives pre-installed. The system targets businesses that need consolidated file storage, virtualization hosting, and backup services in a compact form factor.

48TB Raw Capacity and 64GB Memory Ceiling

The included drives deliver 48TB of raw storage in a four-bay layout, leaving no empty bays for immediate expansion without a separate Synology expansion unit. Memory currently sits at 16GB and can be increased to 64GB using compatible DDR4 RDIMMs, providing headroom for additional virtual machines or heavier caching workloads. Drive bays are fully populated, so capacity growth requires external units.

Dual 10GbE Ports and PCIe Gen4 Expansion

Network connectivity relies on two 10GbE RJ-45 ports supplied by an installed PCIe adapter plus a dedicated 1GbE management port. The single PCIe Gen4 x8 slot is occupied by that adapter, so further high-speed networking or HBA cards cannot be added unless the 10GbE card is removed. Two M.2 NVMe slots are available internally for read-write cache acceleration without using drive bays.

Highlights

  • Intel Xeon D-1726 powers virtualization and heavy workloads
  • 16GB DDR4 ECC memory protects data integrity under load
  • Dual 10GbE RJ-45 ports deliver high-speed network throughput
  • Four 12TB enterprise drives provide 48TB raw capacity out of the box
  • M.2 NVMe slots and PCIe Gen4 x8 enable cache and expansion

Specifications

BrandSynology
ModelRS1626xs+
Port RJ-452 x RJ-45 10GbE LAN Ports
2 x RJ-45 10GbE LAN Ports via Synology PCIe Card
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 Capacity48TB (4 x 12TB)
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

Will the dual 10GbE RJ-45 ports connect directly to my existing 1GbE switch without a separate adapter?

Yes, the two 10GbE RJ-45 ports auto-negotiate down to 1GbE so they plug straight into your current switch using standard Cat5e or Cat6 cables.

Which front-panel LEDs confirm the RS1626xs+ is operating normally after the first boot?

A steady power LED, blinking HDD LEDs showing drive activity, and lit LAN LEDs on the 10GbE ports indicate the system has passed POST and joined the network.

Does the shipment include the four 12TB enterprise drives already installed, or must I purchase and fit them myself?

The unit ships fully assembled with four 12TB Synology Enterprise NAS drives pre-installed in the four bays, plus two C13-to-C14 power cords, a front cover and the accessory pack.

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