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Silver 1U rackmount NAS chassis with four front drive bays and LED indicators

Synology Inc.

Synology RS1626xs+ Xeon D-1726 4-Bay Rackmount NAS 64GB 1.6TB Cache 32TB Drives

SKU CH-4M2Y-CN6KW

Enterprise 1U rackmount NAS with Xeon D-1726, 64GB DDR4, 1.6TB NVMe cache and 32TB drives

  • 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 RAM64 GB
  • Drives included32 TB (4 × 8 TB)
  • Intel Xeon D-1726 processor powers virtualization workloads
  • 64GB DDR4 ECC memory supports multi-VM environments
  • 6TB NVMe cache accelerates frequent data access
  • 32TB Synology Enterprise drives provide mission-critical storage
  • Dual 10GbE ports enable high-throughput networking

Synology RS1626xs+ 4-Bay Rackmount NAS

The Synology RS1626xs+ is a 1U rackmount NAS built for enterprises that need high-throughput file services, virtualization hosting and backup consolidation in a compact form factor. It ships fully assembled with an Intel Xeon D-1726 processor, 64GB DDR4 ECC memory, 1.6TB NVMe cache and four 8TB enterprise drives pre-installed. The platform runs Synology DSM and supports expansion to sixteen drives with a compatible expansion unit.

Verify rack depth power and network before ordering

Confirm your cabinet can accommodate a depth of 668.5 mm and provides two C13 outlets for the redundant 100-240 VAC power supplies. The unit requires two 10GbE RJ-45 uplinks plus a dedicated 1GbE management port, so ensure switch ports and cabling are available. Operating temperature must stay between 5 °C and 35 °C with humidity below 80 % RH, and the 9.5 kg weight needs suitable rack rails.

Sustained load performance with Xeon and NVMe cache

Under continuous multi-user workloads the Xeon D-1726 six-core CPU maintains steady throughput for VM hosting and encrypted file transfers without thermal throttling. The 1.6TB NVMe read-write cache absorbs random I/O bursts, keeping latency low during prolonged backup windows or surveillance ingest. Dual 10GbE links and ECC memory prevent data-path bottlenecks and silent corruption during extended operation.

How it compares

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

Price $12,082.99
Pricier than about 78% of the 763 comparable items (median $6,564.99).

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Specifications

Product
Brand nameSynology
Model nameRS1626xs+
Processor
CPUIntel Xeon
Memory
Installed RAM64 GB
Storage
Drives included32 TB (4 × 8 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

Does the RS1626xs+ arrive with the 32TB of drives and the 1.6TB cache already installed?

Yes — the unit ships fully assembled and tested with four 8TB enterprise drives and two 800GB NVMe cache modules pre-installed.

Should I choose the 64GB configuration or add more memory later?

The system includes 64GB of DDR4 ECC RDIMM, which is the maximum supported capacity for the Xeon D-1726 processor.

How do the dual 10GbE RJ-45 ports benefit a virtualization host?

They provide 10Gbps network bandwidth for live migration, iSCSI storage traffic, and high-throughput VM workloads without a separate NIC.

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