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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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Amazon.com: Sustain Pedal for Casio CTK-491 CTK-496 CTK-571 CTK-573 CTK-591 CTK-593 CTK-671 CTK-691 CTK-691 CTK-700 Keyboard Footswitch : Musical Instruments
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