Casio AD5MU  AC Adapter For Keyboards

The Casio AD5 power supply is compatible with the following Casio keyboard models: LK-100, LK-110, LK-220, LK-230, LK-270, CTK-720, CTK-2000, CTK-2100, CTK-3000, CTK-4000, WK-110, WK-200, and WK-210.