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 32GB 3.2TB cache 192TB drives
Twelve-bay rackmount NAS with Xeon D-1726 processor, 32GB DDR4 memory, 3.2TB cache and 192TB of enterprise drives, 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 Memory32GB
- Included HDD Capacity192TB (12 x 16TB)
- Enterprise performance from 6-core Xeon D-1726 processor
- 192TB raw capacity across 12 enterprise-class 16TB drives
- 2TB high-speed cache accelerates frequent data access
- Dual 10GbE ports enable link aggregation and failover
- 2U rackmount design fits standard 19-inch cabinets
Built for enterprise workloads
The Synology RS3626xs is a 12-bay rackmount NAS powered by a 6-core Intel Xeon D-1726 processor and 32 GB of DDR4 ECC memory. It arrives fully assembled with twelve 16 TB Synology enterprise drives providing 192 TB of raw capacity plus 3.2 TB of SSD cache. This configuration targets organisations that need centralised file storage, virtualization support or multi-site collaboration in a single 2U chassis.
Verify rack space and network infrastructure
The unit measures 88 mm high, 482 mm wide and 724 mm deep and weighs 14.5 kg, so confirm your cabinet depth and load rating before ordering. Two integrated 10GbE RJ-45 ports and a dedicated out-of-band management port require compatible switch ports and cabling. Two USB 3.2 Gen 1 ports are available for direct-attached backup or peripheral use, and dual C13 power inlets need matching PDU outlets.
Operating environment and thermal limits
Synology specifies an operating temperature range of 0 °C to 35 °C with humidity between 8 % and 80 % RH non-condensing. Redundant power supplies draw from 100-240 VAC 50/60 Hz sources and help maintain uptime if one module fails. Sequential throughput reaches 6,300 MB/s read and 3,700 MB/s write under vendor test conditions, indicating sustained drive and controller activity within the stated thermal envelope.
Highlights
- Enterprise performance from 6-core Xeon D-1726 processor
- 192TB raw capacity across 12 enterprise-class 16TB drives
- 2TB high-speed cache accelerates frequent data access
- Dual 10GbE ports enable link aggregation and failover
- 2U rackmount design fits standard 19-inch cabinets
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 | 32GB |
| 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
What ships inside the box and what must I source myself?
The unit, accessory pack, two C13-to-C14 power cords, front cover and all configuration items are included; the twelve 16 TB drives, two 1.6 TB cache modules and 32 GB DDR4 are already installed.
Which drive and cache combination is already fitted in this build?
Twelve 16 TB Synology Enterprise NAS drives provide 192 TB raw capacity plus two 1.6 TB Synology Enterprise cache modules for 3.2 TB total cache.
What do the 6,300 MB/s read and 3,700 MB/s write figures mean for daily use?
Those are Synology's sequential benchmarks under test conditions; real-world throughput will depend on workload mix, RAID level and network configuration.
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