So much good news to report! The MIDI Expression iO (ME iO) is powered by my powered USB hub which is connected to a silicon Mac, an M1 Mac Mini running macOS Big Sur 11.4. MIDI Expression YELLOW appears in the macOS Audio MIDI Setup (AMS) utility as a class compliant MIDI device. My Roland GI-20 MI...

Greeting from the USA! I'm ready to make a purchase. Can the MIDI Exression iO be bus powered from a computer (M1 Mac Mini) or a powered hub (ACASIS USB 3.0 Hub with 12V power adapter) or is the 9V power supply required? Can the MIDI I-O on the iO be used as MIDI patch bay to connect a MIDI controll...