ITEM NAME:2m USB to MIDI Cable PC to Synthesizer Music Keyboard Instrument Converter Description: Easy to install with built-in driver, USB.1 in + 1 out MIDI interface; 16 MIDI input channels & 16 MIDI output channels. 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).