USB MIDI Host The USB MIDI Host is a small but useful tool for adapting a MIDI device that has only one USB MIDI port to a normal 5pin DIN MIDI connection. The power supply is via an optionally available USB power supply. Simply connect your USB drum trigger pad, USB controller or USB MIDI keyboard to the Miditech USB MIDI host. The MIDI device receives power via the USB port and the sent MIDI data is converted from the USB port into DIN MIDI data. Power supply optional