MIDI pedal converter (MPC-20) is a converter designed by DOREMiDi with automatic detection of various types of musical instrument pedals, which is used to solve the situation of insufficient number of pedals during performance. The MPC-20 has 4 pedal connectors that can connect up to 4 expression pedals, or 8 switch pedals (4 dual switch pedals). The MPC-20 is compatible with positive polarity expression pedals, reverse polarity expression pedals, sustain pedals,dual-switch pedals, electronic drum hi-hats, and has MIDI DIN and USB MIDI outputs, suitable for a variety of performance scenarios.