Easy to turn your PC into a music studio by connecting a music keyboard to your computer with the supplied USB MIDI cable. High-quality design ensures reliable performance. Simply connect to a computer USB port for automatic driver installation. Supports Windows XP, Vista, Win7, and 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. Enables music recording by connecting a music keyboard to your computer using the USB MIDI cable with input and output. How to use: 1. Connect the "OUT" to the MIDI "IN" jack of a MIDI keyboard (or MIDI device). 2. Connect the "IN" to the MIDI "OUT" 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 Sonar, MIDI Monitor, or similar. 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 and display differences may cause slight variations in the color of the item in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.