YAMAHA FC5 FOOTSWITCH Can be utilized as a sustain foot pedal or FS controller in synthesizers, tone modules and drum machines equipped with 1/4 inch jack plug. The FC5 has a 5 ft. cable which connects to a 1/4 inch jack plug. This pedal works with any keyboard utilizing a sustain pedal with 1/4 in. connector. This pedal will only work with Yamaha keyboards, unless your keyboard has a polarity switch.