This is a combination CardBus adapter that features both USB 2.0 and IEEE 1394 (FireWire) connections on the same card. It includes two USB 2.0 Type A receptacles and two IEEE 1394 Type A receptacles. All USB ports support both USB version 2.0 and 1.1 devices. The two external IEEE 1394 receptacles can be used for IEEE 1394 devices such as digital camcorders, digital cameras, etc..