Hot-swappable inputsBuilt-in 4-pin power connector for receiving extra cable from PC power supplyProvides IEEE1394b software to enable better performance of data transfer3 x external and 1 x internal independant portsData transfer speeds of 100, 200, 400, 800 mb/sFully compliant with IEEE1394b and backward compatible with IEEE1394a - 2000 and IEEE1394 - 1995 standardsDevies can be daisy-chained and no central bus supervision is required.