The Roland MV is still king in 2021. That’s a great achievement for a unit launched back in 2003.
The standard connections built-in are sufficient but Roland released back in the day a special add-on card, the MV8-OP1.
It added 8x analog out, digital in through coax/optical and an R-BUS connection.
Nowadays clones are available and that’s just amazing to see. They even added ADAT or extra MIDI In/Out, but none of them has R-BUS.
As an owner of the Roland VS-2480 it is super easy to connect the MV8-OP1 to the VS-2480 through R-BUS. Reason enough for me to grab a video about that.