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Amazon.com: HQRP AC Adapter/Power Supply Compatible with Casio CTK-611 / CTK611 / CTK-620L / CTK620L Keyboards Replacement [UL Listed] Plus HQRP Euro Plug Adapter : Musical Instruments
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Amazon.com: MyVolts 9V Power Supply Adaptor Compatible with/Replacement for Casio CTK-611/CTK-671 Keyboard - US Plug : Musical Instruments
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