Product features: VIA/ASM1083 dual-chip version, high-speed and stable, supports DV, HDV, supports up to 1440x1080 high-definition cameras, external 3 1394A 6-pin ports and one 1394A 4-pin port. (Note: PCI interface is not supported) Full-duplex 1- (x1) PCI-Express bus, bus bandwidth up to 2.5Gb/s Compliant with PCI-Express Revision 1.0a Support IEEE P1394b-2002 standard Compliant with 1394 OHCI protocol Revision 1.1 and 1.2 draft Support 800 / 400 / 200 / 100Mbps data transfer rate Plug and play, support hot swap Backward compatible with 1394a standard Compliant with IEEE 1394a-2000 and 1394-1995 standards Support bidirectional transmission ( FirewireTM , iLINKTM and SB1394TM ) IEEE 1394 standard 1394b-2002 standard supporting bidirectional communication (800Mbps data transfer rate) Supported operating systems: 8 / 7 / Vista / XP / 2000 / ME / 98SE / Server 2003-2008 32/64-bit, and other operating systems Material:Metal colour:Black Package Contents: 1 x PCIE x1 to 1394 4 interface expansion card 1 x 1u baffle 1 x 2u baffle 1 x Data cable (random color,Cannot choose to specify) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.