Home › Forums › Products › Rackmount › OK to use a firewire 800 to 400 adapter? (with macbook pro 800 port?) › Reply To: OK to use a firewire 800 to 400 adapter? (with macbook pro 800 port?) July 16, 2009 at 7:07 pm #118801 nickroseModeratorEventide Staff You should be able to use an adaptor. Probably a 9 pin to 6 pin type.