FireWire 800 to 400 Cable Moshis 800 to 400FireWire adapter provides a simple way to connect FireWire 400 devices to the latest Mac Pro, MacBo ok Pro, Mac Mini, iMac and all other computers with a FireWire 800 port. If you are a Mac user, you willnever have to worry about FireWire compatibility issues again. Our FireWire 800 to 400 adapter features a 9-pin male connector that plugs into your computers FireWire 800 port. The other end of the adapter features a 6-pin female FireWire connector that any standard 6-pin male FireWire 400 cable can plug into. Simply plug the adapter into yourlatest Mac product and use any FireWire 400 devic e.