Is the MX-DAC by Musical Fidelity Roon Ready?
DACs aren’t Roon Ready devices; this is for network streamers. However, some DACs are certified Roon Tested.
In this case, the MX-DAC is not Roon Tested. However, there’s no reason to suggest it won’t work with Roon (my DAC isn’t and it works perfectly.) You may need to configure it manually if the DAC doesn’t advertise settings over USB, but that’s all.