Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
- SLC
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Seagate
A 12 TB enterprise hard drive with a 7200 RPM spindle, 256 MB cache and a 550 TB yearly workload rating for 24×7 storage arrays
Options 12TB
Struck-through versions exist but are not stocked here.
The Seagate Exos X12 is a 12TB 3.5 inch internal hard drive built for enterprise storage systems. It operates at 7200 RPM with a 256MB cache and a SATA 6.0Gb/s interface. The helium-sealed design supports 24x7 operation in servers, JBODs and business NAS environments.
This drive suits organisations that need high-capacity bulk storage with a 550TB per year workload rating and 2.5 million hour MTBF. It is not intended for desktop PCs or consumer NAS units that cannot sustain enterprise-class duty cycles. Systems requiring a different physical interface or form factor cannot use this SATA 3.5 inch device.
Advanced Write Caching helps deliver up to 261 MB/s data transfer rates for heavy application usage. This throughput figure is the key metric for deciding if the drive matches your storage array performance requirements.
| Brand | Seagate |
|---|---|
| Series | Exos X12 |
| Interface | SATA 6.0Gb/s |
| Capacity | 12TB |
| NAND Flash Memory Type | SLC |
| RPM | 7200 RPM |
| Cache | 256MB |
| Features | Scales to Meet Your Growing Capacity Needs Seagate Exos X12 enterprise hard drives offer the highest rack space efficiency - up to 10PB of data in a single 42U rack. Enhanced caching makes it perfect for Big Data applications, providing the fastest hard drive data transfers in the datasphere. Hyperscale SATA models are tuned for large data transfers, providing low latency. You can easily customize your bulk storage requirements with innovative technology advancements (PowerBalance, PowerChoice and RAID Rebuild). Exos X12 drives help provide low data center TCO, and are architected to |
| Usage | For Enterprise Storage |
| Form Factor | 3.5" |
| Height (maximum) | 26.11mm |
| Width (maximum) | 101.85mm |
| Length (maximum) | 147.00mm |
| Shipping weight | 0.71 kg |
| Package size | 154 × 108 × 38 mm |
The 3.5-inch helium design and PowerChoice feature keep power draw low and heat manageable during continuous operation, while the 2.5 million hour MTBF rating reflects reliability under sustained load.
Yes, the drive uses a native SATA 6.0Gb/s interface and standard 3.5-inch form factor, so it plugs directly into any SATA backplane or controller without extra hardware.
The 256 MB cache and up to 261 MB/s sustained transfer rate operate fully within the SATA 6.0Gb/s bandwidth, so performance scales to the limit of your existing controller.
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