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Black 2U rackmount chassis with twelve drive bays and front LCD panel

Synology Inc.

Synology RS3626xs Intel Xeon D-1726 12-Bay Rackmount NAS 32GB RAM 1.6TB Cache 288TB Drives

SKU CH-HC3K-KRJ9K

Twelve-bay rackmount NAS with Xeon D-1726, 32GB DDR4, 1.6TB cache and 288TB of SATA drives

  • CPUIntel Xeon
  • Form factor12-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 included288 TB (12 × 24 TB)
  • 12-bay rackmount density for high-capacity storage
  • 288TB of enterprise drives pre-installed and tested
  • Intel Xeon D-1726 processor handles demanding workloads
  • 32GB DDR4 ECC memory ensures data integrity
  • 6TB Synology cache accelerates frequent data access

Enterprise 12-bay rackmount NAS

The Synology RS3626xs is a 2U rackmount network-attached storage server built for businesses that need high-capacity, centralised file storage and data protection. It ships fully assembled with twelve 24 TB enterprise drives providing 288 TB of raw capacity, plus 32 GB of DDR4 ECC memory and a 1.6 TB SSD cache for accelerated workloads. The Intel Xeon D-1726 six-core processor handles virtualization, surveillance and multi-site collaboration tasks.

288 TB raw capacity with 1.6 TB cache

Twelve 3.5-inch SATA drives deliver 288 TB of storage headroom for large file repositories, backups and media archives. The included 1.6 TB enterprise SSD cache (2 × 800 GB) absorbs frequent random reads and write bursts, keeping latency low for databases and virtual machines. When the drive bays are full, capacity can only grow by replacing drives with larger models or adding an external expansion unit.

Dual redundant supplies in 0–35 °C range

Redundant power supplies protect uptime if one unit fails, drawing 100–240 VAC at 50/60 Hz. The chassis operates between 0 °C and 35 °C with humidity from 8 % to 80 % RH, and front-panel LEDs show power, drive and network status at a glance. Fan noise scales with load but remains within typical rack-environment limits for a 2U server.

How it compares

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

Price $23,711.99
Pricier than about 93% of the 763 comparable items (median $6,564.99).

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Specifications

Product
Brand nameSynology
Model nameRS3626xs
Processor
CPUIntel Xeon
Memory
Installed RAM32 GB
Storage
Drives included288 TB (12 × 24 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 factor12-Bay
Product dimensions88 mm × 482 mm × 724 mm
Product weight14.5 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 range0 °C to 35 °C (32 °F to 95 °F)
Humidity range8% to 80% RH
More details
Indicator lightsPower, HDD (Hard Disk Drive), LAN (10/100)

Questions about this item

Will the two 10GbE RJ-45 ports work with my existing 1GbE switch and cabling?

Yes, the 10GbE ports are backward compatible with 1GbE networks so you can connect to your current switch using standard Cat5e or Cat6 cables and still benefit from the RS3626xs processor and 32GB DDR4 memory.

How can I verify the 1.6TB Synology Enterprise cache is active after the unit is racked and powered on?

Log into DSM, open Storage Manager and confirm the two 800GB cache drives appear as a read-write cache volume; the dashboard will also show cache hit-rate statistics once workloads start running.

Does the package include drive trays and rails for the twelve 24TB drives, or must I order them separately?

The unit ships fully assembled with all twelve 24TB Synology Enterprise drives pre-installed in their trays, plus an accessory pack, two C13-C14 power cords and a front cover — no extra drive hardware is required.

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