Add 4 FireWire ports to a desktop computer through a PCI slot. - 3 external, 1 shared internal FireWire 400 port, with supported data transfer rates up to 400 Mb/s - Compliant with IEEE 1394a - 2000 as well as 1394-1995 standards - Standard profile (low-profile installation bracket included) - Plug-and-Play and hot-swap compatible