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Amazon.com: MaxLLTo 6ft Extra Long 9V 850mA AC/DC Power Supply Charger Cord Replacement Adapter for Casio CTK-531 CTK-540 CTK-541 CTK-551 CTK-555L CTK-574 CTK-591 CTK-593 Keyboard : Musical Instruments
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Amazon.com: HQRP AC Adapter/Power Supply for Casio CTK-530 / CTK530 / CTK- 531 / CTK531 Keyboards Replacement [UL Listed] Plus HQRP Euro Plug Adapter : Musical Instruments
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HQRP AC Adapter / Power Supply compatible with Casio CTK-530 / CTK530 / CTK- 531 / CTK531 Keyboards Replacement - Walmart.com
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