USB Host and class-compliant MIDI devices

The Moog Forum Moog One
1

Manual says :

(…) the USB HOST port can also incorporate any class-compliant MIDI device (…)

I tried connecting various class-compliant MIDI keyboards and controllers, without any success. Did anyone else succeed?

PS. And my Apple Keyboard (to intput notes and patch names) - won’t work either.

2

I’m using an old apple pro keyboard (2009, clear plastic and black keys)
works except for numeric pad
can enter names and notes

3

The post was about MIDI class-compliant devices such as a MIDI keyboard or fader box, or breath controller.

4

Yes Seen that

but wanted to mention numeric pad not taken in charge without creating a new post
sorry if wrong place to reply