US 7.5V Power Adaptor for the Casio SA-67 Keyboard by myVolts
Casio SA-67 37-Key Mini Keyboard | Musician's Friend
Casio SA-67: Maintenance and Repair Guide
Amazon.com: AC/DC Adapter Charger for Casio SA67 SA-67 Piano Keyboard Power Supply Cord New, Guy-Tech Compatible Replacement 5 Feet, with LED Indicator : Musical Instruments