Product Features:Easy to install with -in driver; USB powered, no AC adapter needed.1 in + 1 out MIDI interface; 16 MIDI input channels & 16 MIDI output channels.LED indicator; MIDI in & out signal indicator.-in USB cable and MIDI extension cables; Fast and stable MIDI data transmission.Colour: BlackMaterial: PC+ metalTurn your PC into a music studio by connecting a music keyboard to your computer with the USB MIDI cable.Note: the item can only be used for Windows Vista, XP, 7, 8, 8.1 and 10 (32 bit only)How to :1. the cable marked "IN" to the MIDI "OUT" socket of a MIDI device2. the cable marked "OUT" to the MIDI "IN" socket of a MIDI device3.Plug the USB cable into USB on your computer, the red LED will light to show on4.Open your music software program, e.g. , Sonar, MIDI Connections, etc5.Set the music programs MIDI in and MIDI Out devices to "USB Audio Device"6.Your USB to MIDI interface is now for 7.To save potential problems, it is recommended this interface is always connected to the USB as it was originally installed on to prevent multiple installations of the driver. If you have the instruction and it still could not work. Please uninstall the camera driver of your computer, especially the camera driver and try again.Product Specification:Type MIDI to USB adapter CableCable length 1.8mSuitable For Instrument, PCConnector A MIDI MaleConnector B MIDI MaleConnector C USB MalePackage Includes:1 x MIDI to USB adapter CableOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.