HGST Travelstar Z5K500 HTS545025A7E380 250GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" laptop hard drive

Slim 7 mm 2.5″ drive for thin notebooks

The HGST Travelstar Z5K500 HTS545025A7E380 is a 250 GB internal hard drive built to the 7 mm Z-height that modern ultra-thin laptops require. Its SATA 3.0 Gb/s interface drops straight into any 2.5″ bay designed for the slimmer form factor. The bare-drive packaging suits system integrators and DIY upgraders alike.

Steady 5400 RPM throughput

At a constant 5400 RPM the spindle delivers predictable sustained transfer rates rather than burst-only peaks. Advanced Format moves the physical sector from 512 bytes to 4096 bytes, strengthening error correction and helping the drive maintain performance across long write sessions. Average latency sits at 5.5 ms and the 8 MB cache absorbs typical mobile workloads without throttling.

Direct 9.5 mm replacement when thickness matters

This model replaces standard 9.5 mm drives in notebooks, external enclosures and game consoles that have adopted the thinner 7 mm slot. The jump is worth it only when the chassis cannot accept a taller drive; buyers who need more capacity per platter or a taller form factor should look elsewhere. EcoTrac classification confirms low-power, halogen-free construction for mobile thermal budgets.