Does the RME Multiface ADAT input transmit all 24 bits?

[Simmons]

I realize the PCI card is based on the Hammerfall Project (it's ADAT in IS full 24 bit), but can anyone confirm that the ADAT input on the Multiface is full 24 bit also...and not only 20 bit? I can't think of why this would not be 24 bits, but you never know....unless you know.

I want to buy a SwissSonic AD24 converter, but I'd like to be certain that the Multiface will deliver the full 24 bits to the hard drive.