On 1/2/07 11:05 AM, Eddie Hargreaves wrote: > His FireWire 400 drive will work fine on any new Mac he buys, because every > current model includes a FireWire 400 port. That wasn't his question. :-) This is his question: >> I guess what I am asking is if a 400 HD is compatible >> with an 800 port on a new computer. Which I answered: > Firewire 400 and Firewire 800 have different connectors -- they are not the > same connector with different speeds, as USB and USB 2.0 are. They are > physically different shapes, so you cannot plug a Firewire 400 cord into a > Firewire 800 jack, and vice versa. > > This Ohio State website illustrates with pictures. > <http://8help.osu.edu/1249.html> And in the next mail, I gave a link to a cable that converts between Firewire 400 and Firewire 800, running at FW400 speed, should he need that for some reason. peace, Linda