Roon will see just about any device that doesn't need drivers installed. It may call it something wierd. My core on a NUC is called 1730K1D. So I"m not surprised by reports that the streamer works just fine.
I do have an old DAC that requried drivers be installed on the computer driving it and roon won't see it.
Just out of curiousity why do you need an I2S port?
Jerry