08K0637 Hitachi TravelStar 40 GB 5.4K RPM 8MB Buffer 2.5 Inches Form Factor ATA-IDE Notebook Hard Drive. New Pull.

Specification
Device Type Hard drive - internal
Width 2.8 in
Depth 3.9 in
Height 0.4 in
Weight 3.4 oz

Hard Drive
Form Factor 2.5" x 1/8H
Capacity 40 GB
Interface Type ATA-100
Buffer Size 8 MB
Features Fluid Dynamic Bearing (FDB) motor, Partial Response Maximum Likelihood (PRML), giant magnetoresistive (GMR) head technology, TrueTrack servo technology, antiferromagnetically-coupled (AFC) media
Compliant Standards S.M.A.R.T.

Performance
Drive Transfer Rate 100 MBps (external) / 56.3 MBps (internal)
Seek Time 12 ms (average) / 23 ms (max)
Track-to-Track Seek Time 2.5 ms
Average Latency 5.5 ms
Spindle Speed 5400 rpm

Reliability
Non-Recoverable Errors 1 per 10^13

Expansion / Connectivity
Interfaces 1 x ATA-100 - 44 pin IDC
Compatible Bays 1 x internal - 2.5" x 1/8H