This IEEE 1394a FireWire 400 6-pin to 4-pin cable allows you to connect your 4-pin FireWire device to your 6-pin FireWire port while supporting data transfer rates up to 400 Mbps and offering hot-pluggable convenience so you can connect and disconnect without restarting your computer, and its premium triple-shielded design reduces EMI/RFI interference while maintaining compatibility with all IEEE-1394 peripherals.