Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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HGST
HGST HDS721075KLA330 750GB 7200 RPM 32MB SATA 3.0Gb/s 3.5" internal hard drive
A 750 GB 3.5-inch desktop hard drive spinning at 7200 RPM with 32 MB cache and a SATA 3.0Gb/s interface
- PackagingBare Drive
- InterfaceSATA 3.0Gb/s
- Capacity750GB
- RPM7200 RPM
- Cache32MB
- Average Seek Time8.5ms
- 750 GB capacity stores large media libraries
- 7200 RPM spindle speed delivers responsive data access
- 32 MB cache buffers frequent read and write operations
- Ramp load design protects heads during shock events
- Three low-power idle modes reduce energy consumption
Deskstar 7K1000 750GB SATA drive
The HGST Deskstar 7K1000 is a 750GB 3.5-inch internal hard drive built for desktop PCs and workstations. It connects over a SATA 3.0Gb/s interface and spins at 7200 RPM with a 32MB cache. The bare-drive packaging suits system builders and upgraders who need primary or secondary bulk storage. Buyers who want solid-state speed or capacities above 750GB will need a different drive.
750GB capacity with 32MB cache
The 750GB platter array handles operating systems, applications, media libraries and backups in a single volume. Sequential throughput is limited by the SATA 3.0Gb/s link and the 7200 RPM spindle, so sustained transfers top out well below modern SSD speeds. Random access averages 8.5ms seek time and 4.17ms latency, which is adequate for everyday workloads but not for heavy multi-user databases. The 32MB buffer absorbs burst writes but cannot compensate for the mechanical rotation delay.
Thermal monitoring and quiet seek
Thermal monitoring and fly-height control adjust head position to maintain reliability across temperature changes. Three low-power idle modes reduce draw when the drive is not active, and the ramp-load design parks heads safely during power-off. Silent seek acoustics keep operating noise low in typical desktop chassis. Power consumption varies with workload but stays within standard 3.5-inch hard-drive envelopes.
Highlights
- 750 GB capacity stores large media libraries
- 7200 RPM spindle speed delivers responsive data access
- 32 MB cache buffers frequent read and write operations
- Ramp load design protects heads during shock events
- Three low-power idle modes reduce energy consumption
Specifications
| Brand | Hitachi GST |
|---|---|
| Series | Deskstar 7K1000 |
| Model | HDS721075KLA330 (0A35154) |
| Packaging | Bare Drive |
| Interface | SATA 3.0Gb/s |
| Capacity | 750GB |
| RPM | 7200 RPM |
| Cache | 32MB |
| Average Seek Time | 8.5ms |
| Average Latency | 4.17ms |
| Features | Perpendicular magnetic recording technology Ramp load design increases shock protection and power savings Thermal monitoring and fly height control enhance reliability Three low-power idle modes boost power efficiency Silent seek acoustics achieve ultra-quiet operation Host/drive authentication for hardware security |
| Form Factor | 3.5" |
| Shipping weight | 0.91 kg |
| Package size | 203 × 152 × 51 mm |
Questions about this item
Will the SATA 3.0Gb/s interface on this Deskstar 7K1000 work with my older motherboard that only supports SATA 1.5Gb/s?
Yes, the SATA 3.0Gb/s interface is backward compatible with SATA 1.5Gb/s ports, so the drive will operate at the slower speed on older hardware.
How can I verify the 7200 RPM spindle speed and 32MB cache are active after installing the HDS721075KLA330?
Use a system information tool or BIOS to confirm the model HDS721075KLA330 is detected, then check the reported rotation speed and cache size match the 7200 RPM and 32MB specifications.
The packaging says Bare Drive — does the box include a SATA data cable, power adapter or mounting screws for a 3.5" bay?
No, as a Bare Drive only the HDS721075KLA330 unit itself is included; you must supply your own SATA data cable, power connection and 3.5" mounting screws.
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