HD WD RAPTOR WD740GD 74 GB SATA/150 10000 RPM

General Rotational Speed 10,000 RPM (nominal) Buffer Size 8 MB Average Latency 2.99 ms (nominal) Contact Start/Stop Cycles 20,000 minimum Seek Times (Average) Read Seek Time (Average) 4.5 ms Write Seek Time (Average) 5.9 ms (average) Track-To-Track Seek Time 0.6 ms (average) Full Stroke Seek 10.2 ms (average) Transfer Rates Buffer To Host (Serial ATA) 150 MB/s (Max) Buffer To Disk 102 MB/s (Max)