WDC WD3200AAJB hdd 320GB IDE/ATA100 7200rpm 8MB Caviar Blue 100MB/s

Performance Specifications Rotational Speed 7,200 RPM (nominal) Buffer Size 8 MB Average Latency 4.20 ms (nominal) Contact Start/Stop Cycles 50,000 minimum Seek Times Read Seek Time 8.9 ms Write Seek Time 10.9 ms (average) Track-To-Track Seek Time 2.0 ms (average) Full Stroke Seek 21.0 ms (average) Transfer Rates Buffer To Disk 748 Mbits/s (Max) Buffer to Host (EIDE) 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