WD205BA Western Digital Expert 20 GB 7.2K RPM 2MB Buffer 3.5 Inches Form Factor ATA-IDE Hard Drive. Clean Tested.

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 20.5 GB
Interface Type ATA-66
Buffer Size 2 MB
Compliant Standards 224-bit Reed Solomon ECC

Performance
Drive Transfer Rate 66.6 MBps (external) / 3.5 MBps (internal)
Seek Time 9.5 ms (average) / 19 ms (max)
Track-to-Track Seek Time 2.2 ms
Average Latency 4.2 ms
Spindle Speed 7200 rpm

Expansion / Connectivity
Connections 1 x storage - ATA-66 - 40 pin IDC
Compatible Bays 1 x internal - 3.5" x 1/3H