This pedal works as a sustain pedal with all make so of keyboards including CASIO, YAMAHA, KORG + Many More. Is switchable polarity allows universal operation.

What does a sustain pedal do ?

A sustian pedal holds the notes / chords that are being playing when pressed. This allows you to carry on playing whilst the previous notes are still holding. A sustian pedal is the main pedal used on a piano.