AD-5 - Casio keyboard AC adapter
AD-5 - AC Adapter For Casio, models this power supply will fit include the LK-30, CTK-520L, CTK-560, LK-33, CTK-560L, CTK-431, CTK-495, CTK-531, CTK-631, CTK-620L, CTK-611, CTK-541. fits all CT, CTK, AND LK keyboards (except LK6) Reverse Polarity
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