1.Provides two FireWire 800 (1394b) ports and one 1394a (6-pin) port for multiple 1394b/1394a devices connections 2.Supports data transfer rates of 100, 200, 400 and 800 Mbps 3.Built-in 4-pin power connector provides extra power when connected to the system’s power supply (recommended) 4.Supports hot-swapping and Plug-n-Play connection of peripheral devices 5.Works with various types of FireWire 800 (1394b) and 1394a devices including portable hard disk, DV camcorder, digital camera,CD-RW/DVD-ROM drive and other audio/video devices