Yamaha FC35 Triple (3)-pedal unit for Yamha digital pianos and keyboards. 

Only compatible with the following:

• P-121 / P-125 / P-125a / P-225 / P-515 / P-525 
• P-S500 / DGX-670 
• CLP-825 / CLP-835 / CLP-845 / CLP-875 / CLP-885 / CLP-865GP / CLP-895GP

Note: It is only recommend to connect the FC35 pedal unit to the P-121 / P-125 / P-125a / P-225 with an optional stand (available separately) attached, as using these models placed on a desk will place pressure on the FC35 cable, which may damage the cable.