Western Digital 30GB Hard Drive (WD300ABRTL) 30 GB Capacity Transfer Rates of 66.6MB/s(Mode 4 Ultra ATA) and 33.3MB/s(Mode 2 Ultra ATA) 5400 RPM Spindle Speed & Low Average Seek Times Data Lifeguard Detects, Isolates, & Repairs Problem Areas On The Hard Drive, Preventing Data Loss