IEEE 1394a Interface Card, PCIexpress, 4 Port 1x ext. 1394mini, 2x ext./1x int. 1394a Ports Equip your PC with four additional IEEE 1394-ports! Two external 1394a and one external 1394mini port Installs in any available PCI-Express slot with different lane width Data transfer rate 100Mbps / 200Mbps / 400Mbps Additional internal 1394a port + 4-pin jack for power supply