Easy to turn your PC into a music studio by connecting a music keyboard to your computer with the supplied USB MIDI cable. . Connect to a computer USB socket for automatic driver installation. Supports Windows XP, Vista, Win7, and Mac OS X operating systems. LED indicators show power, MIDI in signal, and MIDI out signal. USB powered and class compliant for true plug-and-play functionality. Record music by connecting a music keyboard to your computer using the USB MIDI cable with input and output. How to use: 1. Connect the "IN" to the MIDI "OUT" jack of a MIDI keyboard (or MIDI device). 2. Connect the "OUT" to the MIDI "IN" socket of a MIDI keyboard (or MIDI device). 3. Plug the USB cable into a free USB port on the computer. The red LED will light up to indicate power. 4. Open your music software program, such as Cubase, Sonar, or other MIDI-compatible software. 5. Set the MIDI input and output devices to "USB Audio Device." 6. Your USB MIDI interface is now ready for use. Net weight: approximately 100g Length: approximately 2 meters Packing size: 14 x 9.5 x 2 cm Cable length: 2m Material: Tinned copper wire Color: Black Package Contents: 1 x Converter Note: Light shooting and different displays may cause slight color variations between the item in the picture and the actual product. Measurement may vary by +/- 1-3cm.