Casio ctk-531 Electric Keyboard Piano Organ CTK531 Synthesizer & power supply | #519266173
Casio keyboard CTK 531 piano for Sale in Fontana, CA - OfferUp
Amazon.com: UpBright New Global 9V AC/DC Adapter Compatible with Casio LK-93TV CTK-519 CTK-900 CTK-531 LK93TV CTK519 CTK900 CTK531 Piano Keyboard World Wide Use 9VDC Power Supply Cord Battery Charger Mains PSU :