HTS542512K9SA00 Hitachi Travelstar 120 GB 5.4K RPM 8MB Buffer 2.5 Inches Form Factor SATA150 Notebook Hard Drive. New Pull.

Specification
Device Type Hard drive - internal
Width 2.8 in
Depth 3.9 in
Height 0.4 in
Weight 3.10 oz

Hard Drive
Form Factor 2.5" x 1/8H
Capacity 120 GB
Interface Type Serial ATA-150
Buffer Size 8 MB
Features TrueTrack servo technology, Thermal Flyheight Control (TFC), Bulk Data Encryption

Performance
Drive Transfer Rate 150 MBps (external)
Internal Data Rate 83.1 MBps
Seek Time 11 ms (average)
Track-to-Track Seek Time 1 ms
Average Latency 5.5 ms
Spindle Speed 5400 rpm

Reliability
Start / Stop Cycles 600,000

Expansion / Connectivity
Interfaces 1 x Serial ATA-150 - 7 pin Serial ATA
Compatible Bays 1 x internal - 2.5" x 1/8H