MR816x with Saffire liquid 56

I have a Steinberg MR816x and are really happy with it. Can I connect a Saffire liquid 56 and use 16 channel direct recording into my pc and how should I connect them, thru adat?

I dont have the focusrite saffire liquid 56, would a MR816csx be a better choise?
Anyway, I need 16 channels of recording and no dropouts or anything that makes it unstable. A full steinberg MR 816 setup, or mix with something like Focusrite Saffire liquid 56.

Cheers
Johan

Hi,
Did you end up getting the LS56? How does it work with the MR816?