Amazon.com: HY1C 9V Power Cord for Casio Keyboard AD-5 AD-5MU WK-110 WK-200 LK-43 LK-220 CTK-720 CTK-710 CTK-700 CTK-491 CTK-511 CTK-533 CTK-551 CTK-571 CTK-573 CTK-2100 Power Supply Adapter : Electronics
Amazon.com: 9V Piano Supplies Power Adapter Replacement Casio Keyboard Power Cord 6.6Ft Mirco USB Charger Cable for AD-5 AD-5MU WK-200 LK-43 LK-220 CTK-496 CTK-700 CTK-720 CTK-2100 with : Musical Instruments