Ventura
Been here for ages!
geezI think the same as the FR1x. You can use a Widi uhost on the square usb port A on the bottom. But you need to power it, which I use the front usb port. You will then have midi in and out communication. Which I use midi in with Airturn Bt500s-6 for accordion expression and register selection.
But widimaster will work fine plugged into midi port. Only if this port is able to power it? It does work on FR1x.
what part of "this is only a data port" on the 3x didn't you understand ?