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Silver 1U rackmount NAS with four drive bays and front LEDs

Synology Inc.

Synology RS1626xs+ Intel Xeon D-1726 4-Bay Rackmount NAS 32GB RAM 1.6TB Cache 80TB Drives

SKU CH-780S-RDTJJ

A 4-bay rackmount NAS with Intel Xeon D-1726 processor, 32GB RAM, 1.6TB NVMe cache and 80TB of enterprise drives, pre-assembled and tested

  • CPUIntel Xeon
  • Form factor4-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 RAM32 GB
  • Drives included80 TB (4 × 20 TB)
  • Powerful Xeon D-1726 6-core processor drives virtualization and heavy workloads
  • 32GB DDR4 ECC memory ensures data integrity for mission-critical applications
  • 6TB NVMe cache accelerates frequent read and write operations
  • 80TB enterprise drives deliver massive raw capacity out of the box
  • Dual 10GbE RJ-45 ports provide high-speed network connectivity

Enterprise 4-Bay Rackmount NAS

The Synology RS1626xs+ is a 1U rackmount NAS powered by an Intel Xeon D-1726 processor with 32GB of installed DDR4 memory. It arrives fully assembled with 80TB of raw storage across four 20TB Synology Enterprise drives and 1.6TB of NVMe cache on two 800GB modules. Dual 10GbE RJ-45 ports and a dedicated management LAN provide high-throughput connectivity for demanding workloads.

Suited for virtualization and heavy file workloads

This unit serves businesses that need consolidated block and file storage with hardware-accelerated cache for latency-sensitive applications. The four-bay chassis limits internal expansion without an additional Synology expansion unit, so buyers who require more than four drives inside the same appliance should look at larger chassis options.

Four drive bays with dual 10GbE

The 4-bay form factor and two 10GbE RJ-45 interfaces determine how much data can be stored locally and how fast it moves across the network. Match these constraints to your capacity growth plan and network backbone before deployment.

How it compares

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

Price $10,161.99
Pricier than about 71% of the 763 comparable items (median $6,564.99).

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Specifications

Product
Brand nameSynology
Model nameRS1626xs+
Processor
CPUIntel Xeon
Memory
Installed RAM32 GB
Storage
Drives included80 TB (4 × 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
USB ports2 x USB 3.2 Gen 1 Ports
Power
Power details100-240 VAC 50/60 Hz
Size & build
Form factor4-Bay
Product dimensions44 mm × 481.9 mm × 668.5 mm
Product weight9.5 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 range5 °C - 35 °C
Humidity range8% to 80% RH
More details
Indicator lightsPower, HDD (Hard Disk Drive), LAN (10/100)

Questions about this item

How long can the Xeon D-1726 sustain full load before thermal throttling?

The RS1626xs+ is rated for continuous operation between 5°C and 35°C ambient, with the 1U chassis and dual power cords designed to keep the Xeon D-1726 within thermal limits during sustained 10GbE and NVMe cache workloads.

What is the typical power draw and fan noise when the unit runs 24/7 with all four 20TB drives and 1.6TB NVMe cache active?

The power supply accepts 100-240 VAC at 50/60 Hz and the 9.5 kg chassis uses temperature-controlled fans; acoustic output varies with load but stays within Synology's 1U rackmount specifications for data-centre environments.

Which expansion unit and cable are required to grow beyond the four internal bays?

A compatible Synology expansion unit connects through the PCIe Gen4 x8 slot, allowing the RS1626xs+ to scale up to 16 total drives for additional capacity beyond the included 80TB.

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