ports for multiple 1394b and 1394a device connections with data transfer rates up to 800Mb/s.Built-in 4-pin power connector allows you to receive extra power supply from system Works with various types of 1394b (FireWire 800) and 1394a devices including DV camcorder, digital camera, HDD enclosures and other audio/video devicesPackagingPackage Contents2-port 1394B FireWire 800 & 1-port Firewire 40