Plug & Play: Connect MIDI inst ents, such as keyboard, to fer the MIDI signal to USB. Built-in driver for midi to usb, no extra difficult installation. Easy set up,truly plug and play,checking the operation by LED Indicator. High Applicability: The USB plug is a standard USB connector that can be used every computer, supports Windows XP, Vista, 7, 8, 10 and Mac OS with your MIDI compatible controller, keyboard, pinano, synthesizer or d machine to your computer. (Attention: if used to connect mobile phones or ipad, you need to use OTG cable.) Outstanding Performance: High-performance FTP processing chip to ensure the stability of input signal without delay, enjoy fast and stable MIDI data mission. High Quality: High quality wire, Multi-layer protection design, 1 in + 1 out MIDI interface, 16 MIDI input channels & 16 MIDI output channels. Flexible: 2m/6.5Ft length USB Midi cable with USB bus-power, no external power supply required allows you to build the connection at your favorite spot and set-up USB MIDI Interface is a 1 in 1 out USB 16 channel MIDI interface to connect your MIDI compatible controller, keyboard, synthesizer, or d machine to your computer. USB bus-powered, compatible with Windows and Mac. Specifications: Cable Length: 6.5ft (2m) Instructions for use: Please follow these steps Connect the cable marked "IN" to the MIDI "OUT" socket of a MIDI keyboard (or MIDI device). Connect the cable marked "OUT" to the MIDI "IN"socket of a MIDI keyboard (or MIDI device). Plug the USB cable into any free USB socket on your computer, Led indicats power on. Open your music software program, e.g. Cubase, Sonar, MIDI Connections, etc. Set the music programs MIDI in and MIDI out devices to "USB Audio Device". Your USB to MIDI interface is now ready for use. To save potential problems, it is recommended that this interface is always connected to the same USB as it was originally