Using two Ultrastudio in the same computer?

For some reason, we adquired 2 BMD ultrastudio thunderbolt instead of 1 larger and we can't change that so my question is: can we use, trouble safety, the 2 of them in the same iMac (27" Retina 5k, late 2014 w/16 GB in RAM, Intel i7) so we could have 2 INs and 2 OUTs?

I could test it myself but I can't find information about this, so, your help would be very very useful.

Thanks.
R.