Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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Synology Inc.
Synology RS3626xs Xeon D-1726 12-Bay Rackmount NAS 16GB 1.6TB Cache 240TB
Twelve-bay rackmount NAS with Xeon D-1726 processor, 16GB DDR4 RAM, 1.6TB cache and 240TB of SATA drives pre-installed
- 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 for deployment with 12 x 20TB enterprise drives pre-installed
- 6TB dual SSD cache accelerates frequent data access
- Dual 10GbE ports enable high-throughput network connectivity
- Xeon D-1726 six-core processor handles virtualization and heavy workloads
- 16GB DDR4 ECC memory protects data integrity during operations
Synology RS3626xs 12-Bay Rackmount NAS
The Synology RS3626xs is a 2U rackmount network-attached storage server designed for enterprise environments. It arrives fully assembled with twelve 20TB Synology Enterprise NAS drives providing 240TB of raw capacity. The system includes 16GB of DDR4 ECC memory and 1.6TB of enterprise SSD cache. It is powered by a 6-core Intel Xeon D-1726 processor for demanding business workloads.
Suits centralised storage and virtualisation.
This unit suits organisations needing high-capacity centralised file storage, data protection, virtualisation, surveillance, or multi-site collaboration. Dual 10GbE RJ-45 ports and two PCIe Gen 4 x8 slots support network expansion and SSD caching. Buyers who require GPU acceleration or workloads needing discrete graphics cards should look elsewhere, as the platform does not accommodate such expansion.
240TB raw capacity with twelve 20TB drives
The single specification that decides fit is the included 240TB of raw storage across twelve 20TB Synology Enterprise drives in a 12-bay chassis. This density determines whether the appliance matches your retention, backup, or application capacity requirements before considering expansion units or drive upgrades.
Highlights
- Ready for deployment with 12 x 20TB enterprise drives pre-installed
- 6TB dual SSD cache accelerates frequent data access
- Dual 10GbE ports enable high-throughput network connectivity
- Xeon D-1726 six-core processor handles virtualization and heavy workloads
- 16GB DDR4 ECC memory protects data integrity during operations
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
Does the RS3626xs arrive with drives and cache installed, or must I add them myself?
The unit ships fully assembled and tested with twelve 20 TB SATA drives and two 800 GB cache modules already fitted.
The spec shows 16 GB DDR4 ECC memory expandable to 48 GB — which capacity suits virtualization workloads?
Start with the installed 16 GB for light VMs; populate the remaining slots to 48 GB when running multiple simultaneous virtual machines.
Synology quotes 6,300 MB/s read and 3,700 MB/s write — will I see those speeds over the two 10GbE ports?
Those figures come from Synology's internal sequential tests; real-world throughput depends on RAID type, workload mix and network configuration.
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