Toshiba
Toshiba MK1237GSX 120GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" laptop hard drive
A 120 GB 2.5-inch SATA laptop hard drive spinning at 5400 RPM with 8 MB cache and 12 ms seek time
- PackagingBare Drive
- InterfaceSATA 3.0Gb/s
- Capacity120GB
- Cache8MB
- Average Seek Time12ms
- Average Latency5.55ms
- 120 GB capacity stores documents and media
- 5400 RPM spindle delivers quiet operation
- 8 MB cache speeds up frequent file access
- SATA 3.0 Gb/s interface fits standard laptop bays
- 300 000 hour MTTF rating indicates long service life
120GB 2.5" SATA notebook drive
This 120GB 2.5-inch SATA hard drive fits standard laptop bays that accept a 9.5mm height. It suits users replacing a failed drive or adding affordable capacity to an older machine. The 5400 RPM spindle and 8MB cache handle everyday file storage and boot duties. Buyers needing faster access times or larger capacities should consider other options.
5400 RPM thermal and acoustic profile
At 5400 RPM the drive runs cooler and quieter than faster-spinning mechanical disks during typical workloads. Average seek time is 12ms with 5.55ms latency, reflecting standard rotational speed behaviour. Power draw remains modest, helping battery life in portable systems. The 300,000-hour MTTF rating indicates baseline reliability for light use.
Bare drive SATA 3.0Gb/s integration
The bare drive connects via a SATA 3.0Gb/s interface without extra cables or brackets. Its 2.5-inch form factor and 9.5mm maximum height match most laptop drive caddies and external enclosures. No additional power adapter is required beyond the standard SATA power connector. Builders should verify bay height clearance before installation.
Highlights
- 120 GB capacity stores documents and media
- 5400 RPM spindle delivers quiet operation
- 8 MB cache speeds up frequent file access
- SATA 3.0 Gb/s interface fits standard laptop bays
- 300 000 hour MTTF rating indicates long service life
Specifications
| Brand | TOSHIBA |
|---|---|
| Model | MK1237GSX (HDD2D62) |
| Packaging | Bare Drive |
| Interface | SATA 3.0Gb/s |
| Capacity | 120GB |
| Cache | 8MB |
| Average Seek Time | 12ms |
| Average Latency | 5.55ms |
| RPM | 5400 RPM |
| Features | 300,000 MTTF Hours |
| Form Factor | 2.5" |
| Height (maximum) | 9.5mm |
| Shipping weight | 0.45 kg |
| Package size | 152 × 102 × 51 mm |
Questions about this item
How do I install the 2.5" 9.5mm SATA drive in my laptop, and what step is often missed?
Slide the drive into the bay, secure it with the caddy screws, then connect the SATA data and power cables; the step often missed is fastening the caddy before seating the connector.
What maintenance or replacement will the MK1237GSX need later?
No scheduled maintenance is required; the drive is rated for 300000 MTTF hours, so plan replacement when SMART attributes indicate wear or after that rated lifetime.
What limit appears first during sustained writes on this 5400 RPM 8MB cache drive?
The 5400 RPM spindle and 8MB cache limit sustained throughput, so sequential write speed drops once the cache fills during large transfers.
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