Maybe it would be possible if I could use the midi router to route USB1 in to IN4 in (and USB1 out to OUT4) but I don’t think that option is possible right now
And… What kind of Din 8 is used? is it the 270 degree or the 262 degree variant. The datasheet of the used connector was not clear about this: https://nl.mouser.com/datasheet/2/1628/sdf_j-3510761.pdf EDIT: it is 270 degrees, found good pictures here