Works with the following WK series: WK-1200, WK-1250, WK-1300, WK-1350, WK-1600, WK-1630, WK-3000, WK-3000DX, WK-3500Works with the following other models: CPS-7, CPS-85, CTK-711EX, CTK-811EX, PX-100, PX-300, PX-500