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Amazon.com: HQRP AC Adapter/Power Supply for Casio CTK-631 / CTK631 / CTK-651 / CTK651 Keyboards Replacement [UL Listed] Plus HQRP Euro Plug Adapter : Musical Instruments
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UPBRIGHT NEW 9V Adapter For Casio CTK-631 CTK-481 Keyboard Power Supply Cord Cable Charger - Walmart.com
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