Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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Synology Inc.
Synology Inc. RS3626xs 12-Bay Rackmount NAS 16GB RAM 800GB Cache 240TB Drives
A 12-bay rackmount NAS with 240 TB of enterprise drives, 16 GB DDR4 memory, 800 GB cache and dual 10 GbE ports, fully assembled and tested
- 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)
- Intel Xeon D-1726 processor drives demanding workloads
- 240 TB raw capacity from twelve 20 TB enterprise drives
- 800 GB Synology enterprise cache accelerates frequent data access
- Dual 10 GbE RJ-45 ports with link aggregation support
- 16 GB DDR4 ECC memory expandable to 48 GB
Ready-to-Run 12-Bay NAS with Cache and Drives
The Synology RS3626xs arrives fully assembled with twelve 20 TB enterprise drives, 16 GB of DDR4 ECC memory and 800 GB of SSD cache already installed. A 6-core Intel Xeon D-1726 processor powers the unit, which provides two 10GbE RJ-45 ports and two USB 3.2 Gen 1 ports for connectivity. The 2U rackmount chassis measures 88 mm × 482 mm × 724 mm and weighs 14.5 kg.
Suited for Centralised Storage and Virtualisation
This configuration targets IT teams that need immediate, high-capacity shared storage for file services, backup targets or virtual-machine workloads. The pre-installed cache accelerates frequent-read data sets without extra setup. Buyers who require more than 240 TB of raw capacity, a higher core count or 25 GbE networking out of the box should evaluate other platforms.
Dual 10GbE Ports Dictate Network Integration
The two onboard 10GbE RJ-45 interfaces are the primary throughput path; they support link aggregation and failover for sustained multi-client access. PCIe Gen 4 x8 slots are available for future 25 GbE, Fibre Channel or additional caching cards, but the base network speed is fixed at 10 GbE.
Highlights
- Intel Xeon D-1726 processor drives demanding workloads
- 240 TB raw capacity from twelve 20 TB enterprise drives
- 800 GB Synology enterprise cache accelerates frequent data access
- Dual 10 GbE RJ-45 ports with link aggregation support
- 16 GB DDR4 ECC memory expandable to 48 GB
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 often will the twelve 20 TB SATA drives need replacement under continuous RAID use?
Drive lifespan varies with workload and RAID level; the 20 TB SATA enterprise drives are rated for 24/7 operation and the system supports hot-swap replacement without downtime.
What throughput ceiling appears first when the Xeon D-1726 and 10GbE links run sustained sequential workloads?
Synology test figures show sequential reads above 6,300 MB/s and writes above 3,700 MB/s; the dual 10GbE ports with link aggregation set the practical network ceiling.
How loud and hot does the 2U chassis get when all twelve bays and both 10GbE ports run 24 hours a day?
Operating range is 0 °C to 35 °C; redundant power supplies and dual fans keep internal temperatures within spec while noise stays typical for rackmount gear.
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