WD2500AAJS Western Digital Caviar 250GB 8MB Buffer SATA Hard Drive

WD2500AAJS Specifications

Western Digital Caviar 250GB 7.2K RPM 8MB Buffer 3.5inches Form Factor SATA 300 Hard Drive

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 250 GB
Interface Type SATA 300
Speed 3Gb/s
Buffer Size 8 MB

Performance
Drive Transfer Rate 300 MBps (external) / 121.5 MBps (internal)
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

The range of scores (95th – 5th percentile) for the WD Blue 250GB (2007) is 33.9%. This is a relatively narrow range which indicates that the WD Blue 250GB (2007) performs reasonably consistently under varying real world conditions.