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Amazon.com: HQRP AC Adapter/Power Supply for Casio CTK-671 / CTK671 / CTK- 691 / CTK691 Keyboards Replacement [UL Listed] Plus HQRP Euro Plug Adapter : Musical Instruments
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HQRP AC Adapter / Power Supply for Casio CTK-671 / CTK671 / CTK-691 / CTK691 Keyboards Replacement - Walmart.com
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