Easy to turn your PC into a music studio, by connecting a music keyboard to your computer with the supplied USB MIDI Cable. and . Just connect to a computer USB socket for automatic installation of the driver. Supports Windows XP, Vista Win7 and operating LED indicate power on,MIDI in signal and MIDI out signal. USB powered and Compliant for true plug & play. Make Music recording by connecting a music keyboard to your computer with the USB MIDI cable with input/output. How to use: 1. Connect the "up" to the MIDI "OUT" of a MIDI keyboard Cable (or MIDI device). 2. Connect the "OUT" to the MIDI "IN" socket of a MIDI keyboard Cable (Of MIDI device). 3. Plug the USB cable into a free USB port on the computer, The red LED is lit to show the power supply. 4. Open up your music software , such as , Sonar, MIDI connections, etc. 5. Set the music to MIDI in And MIDI-out devices "USB Audio Device". 6.Your USB MIDI interface is now for use. Net weight: about 100g Length: about 2 Packing size: 14x9.5x2cm Cable length: 2m Material:Tinned copper wire colour:Black Package Contents: 1 x Converter Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.