Digitus IEEE 1394a Interface Card, PCI express, 4 Port 1x ext. 1394mini, 2x ext./1x int. 1394a Ports DS-30201-5, 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