Sanoxy USB to MIDI Keyboard Interface Converter Cable Adapter 2M Sanoxy USB to MIDI Cable PC to Synthesizer Microphone Keyboard Instrument Converter Adapter for Home Music Studio Built-in Driver. No extra driver installation required. 1 in and 1 out Midi Interface. 16 MIDI input channels and 16 MIDI output channels. Fast and stable MIDI data transmission. Intelligent LED Indicators. LED light indicates power, MIDI in signal and MIDI out signal. USB powered; requires no external power. Wide Compatibility. Work with Windows XP/Vista/7/8.1/10 and Mac OS. (Not for Yamaha); Cable length: 2.0m (6ft).