Amazon.com: AC Charger Cord for Casio CTK-3000 CTK-731 CTK-620L CTK-611 CTK-593 Power Supply Charger : Electronics
Amazon.com: MaxLLTo 6FT Extra Long 9V AC DC Power Adapter Supply for Casio CTK-550, CTK-551, CTK-601, CTK-611, CTK-615, CTK-620L Electrical Paino Keyboard : Musical Instruments
Amazon.com: MyVolts 9V Power Supply Adaptor Compatible with/Replacement for Casio CTK-611/CTK-671 Keyboard - US Plug : Musical Instruments