Elegantly simple. The UNO is a complete USB to MIDI solution, equipped with a USB connection to your computer, and a 1 In/ 1 Out 16 channel MIDI connection to your MIDI devices. The Uno works for Windows and Macintosh operating systems. Its single MIDI in and out connectors make it perfect for connecting a keyboard or controller to your computer quickly and easily. Since it is parasitically powered by the USB port, the Uno is convenient and great for portable use. Features: 1-in 1-out MIDI inter