Fivetech USB Class Compliant For True plug & Play N-OUT MIDI Interface Cable Converter PC to Music Keyboard Adapter Cord Simply connect the USB cable into your computer, and your MIDI interface connection is completed. Easy to turn your PC into a music studio, start by connecting a music keyboard to your computer with the supplied USB MIDI Cable. USB powered and Class Compliant for true plug & play. 4.16 MIDI input channels ,16 MIDI output channels. LED's indicate power on,MIDI in signal and MIDI out signal. 6.Supports Windows XP/Vista operating systems. Make Music recording by connecting a music keyboard to your computer with the USB MIDI cable with input/output.