HQRP AC Adapter / Power Supply compatible with Casio CTK-530 / CTK530 / CTK-531 / CTK531 Keyboards Replacement plus HQRP Euro Plug Adapter - Walmart.com
Casio CTK - 530 Touch Response Midi Organ Keyboard Comes With Adaptor | #1774094145
Casio CTK-530 Touch Sensitive Electronic Keyboard Piano | Reverb
CASIO CTK - 530 (DEMO songs) - YouTube
Casio CTK-530 + base de segunda mano por 150 EUR en Mollet del Vallès en WALLAPOP