ST9320325AS 320GB 5.4K RPM 8MB Buffer 2.5 Inches Form Factor SATA 300 Notebook Hard Drive. New Pull.

Specification
Device Type Hard drive - internal 
Width 2.8 in 
Depth 4 in 
Height 0.4 in 
Weight 3.5 oz 

Hard Drive
Form Factor 2.5" x 1/8H 
Capacity 320 GB 
Interface Type Serial ATA-300 
Buffer Size 8 MB 
Features QuietStep, Native Command Queuing (NCQ), Ramp Load, Perpendicular Magnetic Recording (PMR) 

Performance
Drive Transfer Rate 300 MBps (external) 
Seek Time 14 ms (average) 
Average Latency 5.6 ms 
Spindle Speed 5400 rpm 

Reliability
MTBF 500,000 hour(s) 
Non-Recoverable Errors 1 per 10^14 
Start / Stop Cycles 600,000 

Expansion / Connectivity
Interfaces 1 x Serial ATA-300 - 7 pin Serial ATA 
Compatible Bays 1 x internal - 2.5" x 1/8H