Features: Easy to use USB powered and class compliant for true plug and play. Just connect to a computer USB socket for automatic installation of the driver. Built-in driver Latest version with a built-in driver, no additional drivers required, no external power supply (us mA bus 500 mA). MIDI interface There are 1 in + 1 out MIDI interfaces, 16 MIDI input channels and 16 MIDI output channels, support music editing software such as cubase and cakewalk. Two five-pin round plugs LED indicate MIDI in signal and MIDI out signal, Midi input/output interfaced with electronic instruments "midi out" and "midi in". Wide application The adapter can be used for connection between electronic instruments such as piano, keyboard, electric piano, hand roll piano, electric guitar (effect) and computer (sound card). Specifications: Type: Keyboard Synth Adapter Quantity: 1PC Material: Copper + ABS Color: Black and Red Length:2m/6.56ft Net Weight: 122.0g/4.30oz Package: 1 * Keyboard Synth Adapter