Industry Quality : Over Voltage Protection, Over Heat Protection, Ce, Great For Replacement,Us Standard Plug. Specification: Input: Ac 100-240V, 50-60Hz; Output: Dc 9V 850Ma. Tip : Center(-)Outer(+). Extra Length: The Lenght Of Maxllto Ac Adapter For Casio Keyboard Is Up To 6 Ft Extra Long , Special Design For Keyboard Use, Competitors Products Only 3~4 Feets. Perfect Design: Us Standard Plug, Short Circuit Protection, Light In Weight And With Heavy-Duty Cable-Wire. Compatible With Casio Piano Keyboard - Wk-110 Wk-200 Wk-110 Lk-43 Lk-100 Ctk-496 Ctk-573 Ctk-720 Ctk-2100 Casio 3782, Ca-100, Ca-110, Cps-101, Ct-210, Ct-240, Ct-310, Ct-360, Ct-400, Ct-410, Ct-410V, Ct-420, Ct-430, Ct-450, Ct-460, Ct-480, Ct-488, Ct-491, Ct-496, Ct-500, Ct-510, Ct-520, Ct-550, Ct-588, Ct-591, Ct-599, Ct-605, Ct-610, Ct-611, Ct-615, Ct-620, Ct-630, Ct-636, Ct-637, Ct-638, Ct-640, Ct-648, Ct-650, Ct-656, Ct-657, Ct-660, Ct-670, Ct-677, Ct-688, Ct-700,Ct-770, Ct-800, Ct-870, Compatible With Casio Piano Keyboard - Ctk-120, Ctk-130, Ctk-149, Ctk-150, Ctk-2000, Ctk-2100, Ctk-230, Ctk-300, Ctk-3000, Ctk-330, Ctk-4000, Ctk-401, Ctk-411, Ctk-431, Ctk-450, Ctk-451, Ctk-470, Ctk-471, Ctk-480, Ctk-481, Ctk-485, Ctk-491, Ctk-495, Ctk-496, Ctk-500, Ctk-501, Ctk-510, Ctk-511, Ctk-515, Ctk-518, Ctk-519, Ctk-520, Ctk-520L, Ctk-540, Ctk-550, Ctk-551, Ctk-555L, Ctk-560, Ctk-560L, Ctk-571, Ctk-573, Ctk-574, Ctk-591, Ctk-593, Ctk-601, Ctk-611, Ctk-615, Ctk-620L, Ctk-630, Ctk-631, Ctk-647, Ctk-650, Ctk-651, Ctk-671, Ctk-680, Ctk-691, Ctk-700, Ctk-710, Ctk-720, Ctk-731, Ctk-800, Ctk-810, Ctk-900, Ht-6000, Ht-700, Ld-50 Compatible With Casio Piano Keyboard - Lk-33, Lk-35, Lk-40, Lk-42, Lk-43, Lk-43Jc, Lk-44, Lk-45, Lk-46, Lk-50, Lk-55, Lk-56, Lk-60, Lk-70S, Lk-73, Lk-90, Lk-93Tv, Lk-94Tv, Lk-100, Lk-200S, Lk-210, Lk-215, Lk-220, Lk-230, Lk-270, Lk-30, Lk-300Tv, Ma-150, Ma-170, Ma-220, Mt-100, Mt-140, Mt-205, Mt-210, Mt-240, Mt-35, Mt-36, Mt-400V, Mt-500, Mt-540, Mt-55, Mt-600, Mt-640, Mt-820, Pro-100, Pro-200, Pro-300