Description:Buslink 3.5" desktop hard drives feature high capacity and provides USB 2.0, FireWire (IEEE 1394) and hi-speed Serial ATA interface. SATA connected hard drives provide a 30% increase over USB 2.0 and FireWire only drives. Serial ATA connected directly to the internal SATA bus connector are three times faster than IDE and the drives may be configured to be "Bootable". All desktop drives feature a metal alloy case that dissipates heat, 7200 RPM spindle speed and include connecting cables, AC adapter.