USB Midi Cable for Win XP Vista Win7 & IMac OS Simply connect the USB cable into your computer then you midi interface connection is complete. Turn your computer into a mini music studio. Connect your MIDI device such as a keyboard or drum module or any other MIDI compatible device yo your USB computer. Within minutes you can edit and mix your music directly on your computer (DAW required software not supplied). The adapter is powered via the USB port with power and no drivers are required. The adapter supports 16 incoming and 16 outgoing MIDI channels. Connect the inchMIDI-out inch plug of the cable with the inchMIDI-in inch plug of your MIDI device Connect the inchMIDI-in inch plug of the cable with the inchMIDI-out inch plug of your MIDI device Then connect the USB Plug of the cable to your USB 2.0/1.1 port on your computer Features USB Powered True plug and play 1-in/1-out MIDI Interface 16 MIDI input channels 16 MIDI output channels Three LED s Connector Type A:USB A Male Connector Type B:2x 5-pin 2m long.