Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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Synology Inc.
Synology RS3626xs 12-Bay Rackmount NAS 16GB 240TB (12 x 20TB)
Twelve-bay rackmount NAS with 240 TB of enterprise drives, 16 GB DDR4 RAM and dual 10GbE ports for high-throughput file, virtualization and backup workloads
- Port RJ-452 x RJ-45 10GbE LAN Port 1 x Out-of-Band Management LAN Port
- Port USB2 x USB 3.2 Gen 1 Ports
- Form Factor12-Bay
- ProcessorIntel Xeon
- Installed Memory16GB
- Included HDD Capacity240TB (12 x 20TB)
- Ready-to-deploy system fully assembled and tested
- Six-core Intel Xeon D-1726 processor powers demanding workloads
- Two integrated 10GbE RJ-45 ports enable high-speed networking
- Twelve 20TB Synology Enterprise drives deliver 240TB raw capacity
- Expandable memory up to 48GB DDR4 ECC for growth
Enterprise 12-Bay Rackmount NAS
The Synology RS3626xs is a 2U rackmount network-attached storage server populated with twelve 20 TB SATA enterprise drives for 240 TB raw capacity. It ships fully assembled and tested with 16 GB of DDR4 ECC memory and a 6-core Intel Xeon D-1726 processor. The platform targets organisations that need centralised file storage, virtualisation hosting, or multi-site collaboration in a single chassis.
Sustained 10GbE throughput
Dual integrated 10GbE RJ-45 ports support Link Aggregation so bandwidth scales across both links during prolonged transfers rather than peaking in short bursts. Synology quotes sequential rates above 6,300 MB/s read and 3,700 MB/s write under its test conditions, and the Xeon D-1726 maintains consistent performance across virtualisation and surveillance workloads. Redundant power supplies keep the array online if one unit fails.
Rack depth and expansion planning
The unit measures 724 mm deep, so confirm your cabinet provides adequate clearance for cabling and airflow behind the rear panel. Two PCIe Gen 4 x8 slots are available for additional 10GbE, 25GbE or Fibre Channel adapters, but verify card length against the chassis interior before ordering. Memory can be expanded to 48 GB using compatible DDR4 ECC modules if workloads demand more than the installed 16 GB.
Highlights
- Ready-to-deploy system fully assembled and tested
- Six-core Intel Xeon D-1726 processor powers demanding workloads
- Two integrated 10GbE RJ-45 ports enable high-speed networking
- Twelve 20TB Synology Enterprise drives deliver 240TB raw capacity
- Expandable memory up to 48GB DDR4 ECC for growth
Specifications
| Brand | Synology |
|---|---|
| Model | RS3626xs |
| Port RJ-45 | 2 x RJ-45 10GbE LAN Port 1 x Out-of-Band Management LAN Port |
| Port USB | 2 x USB 3.2 Gen 1 Ports |
| Form Factor | 12-Bay |
| Processor | Intel Xeon |
| Installed Memory | 16GB |
| Included HDD Capacity | 240TB (12 x 20TB) |
| Management | Web-Based, DHCP Client |
| LEDs | Power, HDD (Hard Disk Drive), LAN (10/100) |
| Power | 100-240 VAC 50/60Hz |
| Temperature | 0°C to 35°C (32°F to 95°F) |
| Humidity | 8% to 80% RH |
| Dimensions | 88 mm × 482 mm × 724 mm |
| Weight | 14.5 kg |
| Package Contents | Main Unit × 1 Accessory Pack × 1 C13 to C14 power cord × 2 Front Cover × 1 All Configuration Items |
Questions about this item
How loud and hot does the RS3626xs get when running 24/7?
The RS3626xs operates in 0°C to 35°C ambient temperature and 8% to 80% humidity. Redundant power supplies and 12 enterprise drives share the 2U chassis airflow; Synology does not publish a decibel figure.
Which cables and network gear must I already have to connect the two 10GbE ports?
Two RJ-45 10GbE LAN ports require Cat6a or better copper cabling and a 10GbE-capable switch; the box includes two C13-to-C14 power cords for the redundant PSUs.
Can I keep using my existing 3.5-inch SATA drives in the remaining bays?
All 12 bays are filled with 20TB Synology Enterprise SATA HDDs; the chassis accepts 3.5-inch SATA HDDs or 2.5-inch SATA SSDs, so no empty bays remain for older drives.
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