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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 800GB cache 192TB
Twelve-bay 2U rackmount NAS with Xeon D-1726 processor, 16GB DDR4, 800GB SSD cache and 192TB of enterprise 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 Capacity192TB (12 x 16TB)
- 12-bay rackmount design scales storage to 192 TB
- Xeon D-1726 six-core processor drives demanding workloads
- 16 GB DDR4 ECC memory ensures data integrity
- 800 GB enterprise cache accelerates frequent data access
- Dual 10GbE RJ-45 ports enable high-speed network throughput
12-bay rackmount NAS for enterprise workloads
The Synology RS3626xs is a 2U rackmount network-attached storage system built around a 6-core Intel Xeon D-1726 processor. It arrives fully assembled with 16GB of DDR4 ECC memory, 800GB of enterprise SSD cache, and twelve 16TB SATA drives providing 192TB of raw capacity. This configuration targets businesses that need immediate, high-capacity storage for virtualization, surveillance, or multi-site file collaboration.
Upgrades from smaller bays or slower interconnects
The twelve drive bays replace 4-bay or 8-bay units when dataset growth exceeds their physical limits. Dual integrated 10GbE RJ-45 ports replace single 1GbE links, enabling link aggregation and failover for heavier concurrent access. Two PCIe Gen 4 x8 slots allow future addition of 25GbE, Fibre Channel, or extra cache cards. The jump is worth it when current throughput or bay count bottlenecks daily operations.
Check rack space, power, and drive compatibility
Verify your rack can accommodate a 2U chassis measuring 88mm high, 482mm wide, and 724mm deep with a 14.5kg installed weight. Confirm 100-240VAC 50/60Hz supply and dual C13/C14 power cords for redundant PSU operation. Ensure the operating environment stays within 0°C to 35°C and 8% to 80% relative humidity. The twelve bays accept 3.5-inch SATA HDDs or 2.5-inch SATA SSDs; no other drive form factors are supported.
Highlights
- 12-bay rackmount design scales storage to 192 TB
- Xeon D-1726 six-core processor drives demanding workloads
- 16 GB DDR4 ECC memory ensures data integrity
- 800 GB enterprise cache accelerates frequent data access
- Dual 10GbE RJ-45 ports enable high-speed network throughput
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 | 192TB (12 x 16TB) |
| 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 much rack depth does the 88 mm × 482 mm × 724 mm RS3626xs require?
The unit is 724 mm deep, so allow at least that much usable rack depth plus cable clearance behind the rear C13 inlets.
Which drives go in the twelve front bays during initial setup?
The 12 × 16 TB Synology Enterprise NAS drives are already installed; slide the unit in, connect the two C13 cords and the 10GbE cables, then power on.
When will the 16 GB DDR4 memory need expansion?
The system ships with 16 GB and supports up to 48 GB; add compatible DDR4 ECC modules when workloads exceed the installed capacity.
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