mio is a 1-in-1-out USB 16-channel MIDI interface to connect your MIDI compatible controller, keyboard, synthesize or drum machine to your computer, mio is USB bus powered and is plug and play compatible with Windows and Mac computers. Features include: · 1 in and 1 out set of MIDI DIN ports · Supports 16 channels of MIDI I/O · USB bus powered · Mac and PC compatible · Plug and play - no drivers needed · 5 ft long USB to MIDI DIN cable · USB MIDI Class compliant