Midi voltage spec for Quadra Thru

I need to get a MIDI Solutions Quadra Thru. There is the original 5v and the multi voltage version which can be powered by 3.3v or 5v midi. What midi voltage does the MC8 supply, 3.3v or 5v? Thanks!

The MC8 I have doesn’t run the Quadra multi voltage at 5v as it flashes, but it does work very effectively.

The MC8 supplies 3.3v, so you’ll need to use the multi voltage series.