PwrON 6.6 FT 9V AC to DC Adapter For Casio Keyboard CTK-720, CTK-2000, CTK-2100, CTK-3000, CTK-4000, LK-100, LK-110, LK-220, LK-230, LK-270,WK-110, WK-200, WK-210 AC Input: 100 ~ 240V 50~60Hz DC Output: 9V 1000 mA (850 mA) Tip Polarity:Center Negative Cord Length: 6.6 FT/2 M Compatible With Casio all LK models, all CTK models (except the CTK-5000), the WK-110 and the WK-200 Keyboard