I was looking désespérémant a MIDI controller, a vraix!! which has an input and output ports DIN, not USB's!
Result smashes it all: a midi in, midi out and two usb ... concéquence I alegre pilot filters and envelope expendeurs of my fingertips (ATC1X among others) while sending the message notes from my sequencer.
Its functions merge, thru, are ideal for Hardware!

Conclusion:
you guessed it I use it mostly to drive my keyboard and expendeur which has no knob, and it works a lot!
Its different config (see instructions on the manufacturer's website) allow the blow to locate the center of your home studio!
Easy to program, I am delighted, only downside: a little plastoc finish anyway, but this eprix falait not expect the cabinet knobs in wood and chrome ....