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Black 1U rackmount NAS, four drive bays, front panel LEDs and badge

Synology Inc.

Synology RS1626xs+ Xeon D-1726 4-Bay Rackmount NAS 16GB 1.6TB Cache 32TB Drives

SKU CH-S0S2-1SRH1

A 4-bay 1U rackmount NAS with dual 10GbE ports, Xeon D-1726 processor, 16GB DDR4 ECC memory, 1.6TB NVMe cache and 32TB of enterprise 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 RAM16 GB
  • Drives included32 TB (4 × 8 TB)
  • Intel Xeon D-1726 6-core processor powers virtualization and heavy workloads
  • 16GB DDR4 ECC memory ensures data integrity for mission-critical tasks
  • 6TB NVMe cache accelerates random I/O for databases and VMs
  • 32TB Synology Enterprise drives deliver high-capacity, 24/7 rated storage
  • Dual 10GbE RJ-45 ports provide high-speed network connectivity out of the box

4-Bay Rackmount NAS for Enterprise Workloads

The Synology RS1626xs+ is a 1U rackmount network-attached storage server built for businesses that require high-throughput file sharing, virtualization hosting and backup consolidation. An Intel Xeon D-1726 six-core processor and 16GB of DDR4 ECC memory provide the compute headroom for simultaneous VMs and heavy multi-user access.

Dual 10GbE and NVMe Cache Acceleration

Two integrated 10GbE RJ-45 ports remove the typical gigabit bottleneck for database and media workloads, while a dedicated 1GbE management lane keeps administration traffic separate. The factory-installed 1.6TB NVMe cache tier (2 × 800GB) absorbs random read/write bursts, lowering latency for virtual disks and frequently accessed datasets.

32TB Raw Capacity with Expansion Headroom

Four pre-installed 8TB enterprise drives deliver 32TB of raw storage in a single volume or RAID array, suitable for department-scale file repositories and surveillance archives. The chassis supports an additional Synology expansion unit to grow to 16 bays, while the PCIe Gen4 x8 slot remains open for further networking or HBA upgrades.

How it compares

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

Price $8,071.99
Pricier than about 60% of the 763 comparable items (median $6,564.99).

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Specifications

Product
Brand nameSynology
Model nameRS1626xs+
Processor
CPUIntel Xeon
Memory
Installed RAM16 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

What drive replacements will the four 8 TB bays accept later?

The four bays hold 8 TB Synology Enterprise drives; replacements must match the 3.5-inch form factor and the NAS drive firmware expectations.

Which component hits its ceiling first during non-stop 10 GbE transfers?

The dual 10 GbE RJ-45 ports saturate at 10 Gbps before the Xeon D-1726 or the 1.6 TB NVMe cache become bottlenecks.

How loud and hot does the 1U chassis get when it runs 24/7 at 35 °C ambient?

The 1U rackmount design relies on internal fans that ramp up under load; at the 35 °C operating limit the unit stays within spec but audible fan noise increases noticeably.

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