Specifications Mfr Model Number: WD800JB Rotational Speed:7,200 RPM (nominal) Buffer Size: 8 MB Buffer To Disk:602.0 Mbits/s (Max) Read Seek Time (Average):8.9 ms Write Seek Time (Average):10.9 ms (average) Track-To-Track Seek Time:2.0 ms (average) Full Stroke Seek:21.0 ms (average) Average Latency:4.2 ms (nominal) Mode 5 Ultra ATA:100.0 MB/s Mode 4 Ultra ATA:66.6 MB/s Mode 2 Ultra ATA:33.3 MB/s Mode 4 PIO:16.6 MB/s Mode 2 multi-word DMA:16.6 MB/s