yes and no
there is a pseudofirewireslot, firewirecable but with RME-protocoll
The multiface is adat in/out.. so no problem.. hook it up with ADAT..
I'm running the multiface with a hammerfall hdsp 95?? card.. no problem
there is the PCI-card witch connects the multiface with the PC.. RME protocoll
the multiface CANT WORK as a standaloneconverter..