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Silver 1U rackmount server with four drive bays and front panel LEDs

Synology Inc.

Synology RS1626xs+ Xeon D-1726 4-Bay rackmount NAS 16GB 64TB

SKU CH-04SH-3K5AM

A 4-bay rackmount NAS with Xeon D-1726 processor, 16GB DDR4 memory, dual 10GbE ports, and 64TB of enterprise drives pre-installed

  • CPUIntel Xeon
  • Form factor4-Bay
  • LAN ports2 x RJ-45 10GbE LAN Ports 2 x RJ-45 10GbE LAN Ports via Syno
  • USB ports2 x USB 3.2 Gen 1 Ports
  • Installed RAM16 GB
  • Drives included64 TB (4 × 16 TB)
  • Intel Xeon D-1726 6-core CPU powers virtualization and heavy workloads
  • 16 GB DDR4 ECC memory ensures data integrity under load
  • Dual 10 GbE RJ-45 ports deliver high-throughput networking
  • 64 TB raw capacity from four 16 TB enterprise drives
  • 1U 4-bay rackmount fits dense server deployments

4-bay Xeon rackmount NAS

The Synology RS1626xs+ is a 1U rackmount network-attached storage server built around an Intel Xeon D-1726 processor with 16GB of DDR4 ECC memory. It arrives fully assembled and tested with four 16TB Synology enterprise drives installed, providing 64TB of raw capacity out of the box. Dual 10GbE RJ-45 ports and a dedicated management LAN port are included via a PCIe adapter card.

Suits virtualisation and backup workloads

This platform targets organisations that run virtual machines, host large file shares, or operate backup and surveillance repositories where ECC memory and 10GbE throughput matter. The four-bay chassis limits internal drive count unless a compatible expansion unit is added, so environments that need more than four drives internally should evaluate larger chassis options. Buyers who do not require ECC memory or 10GbE connectivity may find simpler systems more cost-effective.

16GB DDR4 ECC memory installed

The unit ships with 16GB of DDR4 ECC RDIMM memory, expandable to 64GB using compatible modules. This capacity ceiling determines how many concurrent virtual machines or cached workloads the system can sustain without paging. Confirm the memory limit matches your application sizing before purchase.

How it compares

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

Price $8,576.99
Pricier than about 63% 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 included64 TB (4 × 16 TB)
Connectivity
Management optionsWeb-Based, DHCP Client
Ports & slots
LAN ports2 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
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 often should the four 16TB Synology Enterprise NAS drives be checked or replaced?

Synology Enterprise NAS drives are rated for continuous operation; monitor SMART data in DSM and replace any drive that reports reallocated sectors or shows consistent latency increases.

Which component reaches its limit first when the Xeon D-1726 runs at full load for hours?

The 16GB DDR4 ECC RDIMM memory ceiling is reached before the 6-core Xeon D-1726 throttles, limiting concurrent VMs or heavy caching workloads.

How much heat and fan noise does the 1U chassis produce during all-day operation?

Operating temperature range is 5°C to 35°C; dual redundant fans spin faster as intake air approaches the upper limit, increasing audible airflow in a 1U rack.

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