ST9120821AS Seagate Momentus 120GB 5.4K RPM 8MB Buffer 2.5 Inches Form Factor SATA150 Notebook Hard Drive. New Pull.

Specification
Form Factor 2.5" x 1/8H
Capacity 120 GB
Interface Type Serial ATA-150
Buffer Size 8 MB
Features G-Force Protection, QuietStep, Native Command Queuing (NCQ)

Performance
Drive Transfer Rate 150 MBps (external) / 57.6 MBps (internal)
Seek Time 12.5 ms (average)
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