Product Features: Easy to install with built-in driver; USB powered, no AC adapter needed. 1 in + 1 out MIDI interface; 16 MIDI input channels & 16 MIDI output channels. LED power indicator; MIDI in & out signal indicator. Built-in USB cable and MIDI extension cables; Fast and stable MIDI data transmission. Colour: Black Material: PC+ metal Turn 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 Vista, XP, 7, 8, 8.1 and 10 (32 bit only) How to Use: 1.Connect the cable marked "IN" to the MIDI "OUT" socket of a MIDI device 2.Connect the cable marked "OUT" to the MIDI "IN" socket of a MIDI device 3.Plug the USB cable into USB on your computer, the red LED light to show power on 4.Open your music software program, e.g. , Sonar, MIDI Connections, etc 5.Set the music programs MIDI in and MIDI Out devices to "USB Audio Device" 6.Your USB to MIDI interface is now ready for use 7.To save potential problems, it is recommended that this interface is always connected to the same USB as it was originally installed on to prevent multiple installations of the driver. If you have follow 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 Cable Cable length 1.8m Suitable For Instrument, PC Connector A MIDI Male Connector B MIDI Male Connector C USB Male Package includes: 5 x MIDI to USB adapter Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.