ST940814AS Seagate Momentus 40GB 5.4K RPM 8MB Buffer 2.5 Inches Form Factor SATA150 Laptop 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 Serial ATA-150
Buffer Size 8 MB
Features G-Force Protection, QuietStep, Native Command Queuing (NCQ), Perpendicular Recording
Compliant Standards S.M.A.R.T.

Performance
Drive Transfer Rate 150 MBps (external)
Seek Time 11 ms (average) / 22 ms (max)
Track-to-Track Seek Time 1 ms
Average Latency 5.6 ms
Spindle Speed 5400 rpm

Reliability
Non-Recoverable Errors 1 per 10^14

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