1. Two external and one internal IEEE 1394 (FireWire) ports support DV camcorders, hard disk drives, removable drivers, scanners, printers and other 1394 audio/video devices including TV, VCR, DVD with data transfer rates up to 400Mb/s 2.Supports both PC and Mac 3.Works with Sony, Panasonic, Cannon, Sharp, JVC and many other DV camcorders for digital video creating/editing