IOGEAR COMBO (Firewire 800 / USB 2.0) External 3.58221; Hard Drive Enclosure The FireWire interface supports data transfer rates of up to 800 Mbps Backward compatible with FireWire 400 and USB 1.1 specifications USB 2.0 interface, supporting high speed data transfer rates of up to 480 Mbps Supports drive capacities well over 280GB, supporting the ATA133 drive standards No Fan Needed, hi-tech design allows for optimal cooling without the need for additional noisy fans