Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
- SLC
$23.99
0.00030554BTC
In stock
DELL
DELL 391KC 8TB 3.5" SAS 7.2K 12Gb/s internal hard drive
An 8 TB 3.5-inch SAS drive spinning at 7200 RPM with a 12 Gb/s transfer rate
- PackagingBare Drive
- InterfaceSAS 12Gb/s
- Capacity8TB
- RPM7200 RPM
- Average Latency12Gb/s
- Form Factor3.5"
- 8 TB capacity stores large datasets
- 7200 RPM spindle delivers responsive throughput
- SAS 12 Gb/s interface enables fast host transfers
- 5 inch form factor fits standard drive bays
- Dell part 391KC ensures genuine compatibility
Dell 391KC 8TB Nearline SAS Drive
The Dell 391KC is an 8TB 3.5-inch nearline SAS hard drive spinning at 7200 RPM. It is built for desktop or server storage arrays that require high-capacity bulk storage with a 12Gb/s SAS interface.
Verify SAS Controller and Bay Compatibility
Before ordering confirm that your system has a SAS host bus adapter or RAID controller with a free 12Gb/s port. You also need an available 3.5-inch drive bay and the correct power and data cables for a bare drive.
Thermals Noise and Power in Normal Use
As a 7200 RPM mechanical drive it generates noticeable vibration and audible seek noise during heavy workloads. Typical power draw rises during spin-up and sustained transfers so ensure your chassis airflow can handle the additional heat.
Highlights
- 8 TB capacity stores large datasets
- 7200 RPM spindle delivers responsive throughput
- SAS 12 Gb/s interface enables fast host transfers
- 5 inch form factor fits standard drive bays
- Dell part 391KC ensures genuine compatibility
Specifications
| Brand | Dell |
|---|---|
| Model | 391KC |
| Packaging | Bare Drive |
| Interface | SAS 12Gb/s |
| Capacity | 8TB |
| RPM | 7200 RPM |
| Average Latency | 12Gb/s |
| Form Factor | 3.5" |
Questions about this item
Does the Dell 391KC 8TB 3.5" SAS drive ship with a mounting tray or cables, or must they be sourced separately?
The drive is supplied as a bare unit without a tray or cables; a compatible SAS backplane and power lead are required for installation.
How do I decide between the 12Gb/s SAS interface and the 7200 RPM spindle speed for my workload?
The 12Gb/s SAS link sets the maximum data-transfer ceiling, while 7200 RPM governs rotational latency; together they suit nearline storage that balances throughput with capacity.
What does the 12Gb/s transfer rate mean for real-world throughput once the drive is in a server?
The 12Gb/s figure is the interface peak; sustained read and write speeds will be lower and depend on the controller, queue depth and the 7200 RPM mechanical limits.
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