Amazon.com: Durable AC/DC Power Adapter Suitable for Casio CTK Series CTK240 CTK245 CTK1100 CTK1150 CTK1200 CTK-2080 CTK2300 CTK3200 CTK 4200 Piano Keyboards, Black : Musical Instruments
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
Amazon.com: Kircuit AC Adapter for Casio CTK-4200 LK-160 LK-165 LK-240 LK-280 SA-46 Power Supply PSU : Musical Instruments
Amazon.com: MyVolts 9V Power Supply Adaptor Compatible with/Replacement for Casio CTK-4200 Keyboard - US Plug : Musical Instruments
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
MaxLLT™ 6 FT Extra Long AC Adapter for Casio CTK-431 CTK-491 Keyboard Wall Charger Power Supply Cord PSU : Musical Instruments - Amazon.com