USB-MIDI audio cable 2m Provides one MIDI in port and one MIDI out port, with each MIDI port supporting 16 MIDI channels. LEDs indicate power on, MIDI in and MIDI out. Make music recording by connecting a musical keyboard to your computer with the USB MIDI input / output cable. The latest version with a built-in driver USB powered plug &  play. Just plug it into a USB socket on your computer for automatic driver installation . Just connect the USB cable to your computer and the MIDI interface connection is completed. Easy to turn your PC into a music studio, start by plugging in a music keyboard to your computer with the supplied USB MIDI cable. How to use Connect the converter" IN "to the MIDI" OUT "socket of a MIDI keyboard  To avoid potential problems, it is recommended to always connect this interface to the same USB port to avoid multiple driver installations. Connect the USB cable to the USB socket of your PC, laptop and the LED light red will light up. Launch your music software program. Connect the converter "OUT" to the MIDI "IN" socket of a MIDI keyboard The USB to MIDI interface converter is now ready for use. Set music in programs MIDI in and MIDI out devices to "USB Audio Device"