Using a power adaptor is a battery saver, allowing you to play hours without the keyboard powering down on a flat battery. This adapter is specifically for Casio keyboards. Specification: • Power output – 9.5V • Compatibility with: Casio Mini Keyboard Series SA-78, SA-77, SA-76, SA-47, SA-46 Casio 61 Key Keyboards CTK-240, CTK-245, CTK-1100, CTK-1150, CTK-1200, CTK-2200, CTK-2400, CTK-3200, CTK-3500, CTK-4200, CTK-4400 Casio WK series WK-220, WK-225 Casio Lighting Keyboard Series LK-120, LK-125, LK-136, LK-137, LK-190, LK-260, LK-265, LK-280
