FireWire800/1394b port PCI/PCIX Host Controller MAC/PC and Linux - 1394B-PCI Three FireWire800/1394b ports (2 external and one internal) One External FireWire/1394a port Supports IEEE 1394a-1995, 1394a-2000 and 1394b Transfer rate up to 400 Mbps (1394a) and 800Mbps (1394b) 33-MHz/64-bit and 33-MHz/32-bit selectable PCI interface