UPBRIGHT 9V Adapter For Casio CTK-530 CTK-533 CTK530 CTK533 Keyboard Digital Piano Power Supply Cord Cable Charger - Walmart.com
Casio ctk-530 for sale - YouTube
HQRP AC Adapter / Power Supply compatible with Casio CTK-530 / CTK530 / CTK-531 / CTK531 Keyboards Replacement plus HQRP Euro Plug Adapter - Walmart.com