VIA VT6306 3+1 Port PCI FireWire Controller Card VIA VT6306 chipset / PCI interface / Two (2) external 6-pin IEEE 1394 FireWire ports / One (1) external 4-pin (unpowered) IEEE 1394 FireWire port One (1) internal IEEE 1394 FireWire port / Plug and Play / PCI 2.1 compliant / Supports up to 63 devices / 1394 OHCI 1.1 compliant / 400 Mbps maximum data transfer