Amazon.com: Super Power Supply® AC/DC Adapter Charger Cord for CASIO CTK-1200, CTK-2080, CTK-2300, CTK-3200, CTK-4200, XW-P1, XW-P1GD, WK-220, WK-225, XW-P1CO, XW-G1.LK-165 : Electronics
Amazon.com: AC Adapter for Casio CTK-4200 Piano Keyboard DC Power Supply Charger Cord Cable, 5 Feet, with LED Indicator, Compatible Replacement : Musical Instruments
Casio Inc. CTK4400 61-Key Touch Sensitive Personal Keyboard with Power Supply : Musical Instruments - Amazon.com
Amazon.com: MaxLLTo 6ft Extra Long AC Power Replacement Adapter for Casio WK-110 WK-200 WK-210 WK-3700 Keyboard Charger Power Supply Cord : Musical Instruments