WD5000AAJS Western Digital Caviar 500 GB 7.2K RPM 8MB Buffer 3.5 Inches Form Factor SATA300 Hard Drive. New Bulk With 2 year Manufacture Warranty.

Specification

Device Type Hard drive - internal
Width 4 in
Depth 5.8 in
Height 1 in

Hard Drive
Form Factor 3.5" x 1/3H
Capacity 500 GB
Interface Type Serial ATA-300
Buffer Size 8 MB
Compliant Standards S.M.A.R.T.

Performance
Drive Transfer Rate 300 MBps (external)
Seek Time 8.9 ms (average) / 21 ms (max)
Track-to-Track Seek Time 2 ms
Average Latency 4.2 ms
Spindle Speed 7200 rpm

Expansion / Connectivity
Interfaces 1 x Serial ATA-300 - 7 pin Serial ATA
Compatible Bays 1 x internal - 3.5" x 1/3H