Amazon.com: MaxLLTo 9V Power Supply Cord Charger, 6 FT Extra Long Replacement AC Adapter for Casio Keyboard CTK-500, CTK-501, CTK-510, CTK-511, CTK-515, CTK-518, CTK-519, CTK-520, CTK-520L, CTK-530 : Musical Instruments
CASIO CTK-501 KEYBOARD POWER SUPPLY REPLACEMENT ADAPTER UK 9V 712221880483 | eBay
UL 9V AC Adapter Charger for Casio CTK-501 CT-460 Keyboard Power Cord Mains PSU | eBay
9V AC/DC Adapter For Casio CTK-500 CTK-501 CTK-540 LK-230 Power Supply Charger | eBay
PwrON Compatible 9V AC Adapter Charger Replacement for Casio CTK-501 CT-460 Keyboard Power Supply Cord Mains - Walmart.com
Amazon.com: MyVolts 9V Power Supply Adaptor Compatible with/Replacement for Casio CTK-501 Keyboard - US Plug : Musical Instruments
9V AC Adapter Charger for Casio CTK-501 CT-460 Keyboard Power Supply Cord Mains | eBay
Amazon.com: PK Power AC Adapter Charger Compatible with Casio Piano Keyboard CTK-500 CTK-501 MA-170 Power : Electronics
Amazon.com: MaxLLTo 6ft Extra Long AC Adapter for Casio CTK-560L CTK-571 Keyboard Wall Charger Power Supply Cord : Musical Instruments
Amazon.com: MyVolts 9V Power Supply Adaptor Compatible with/Replacement for Casio CTK-501 Keyboard - US Plug : Musical Instruments
AC Adapter For Casio CTK-500 CTK-501 CTK-540 LK-230 DC Power Supply Wall Charger | eBay
9V AC/DC Adapter For Casio CTK-500 CTK-501 CTK-540 LK-230 Power Supply Charger | eBay