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Casio CTK-631 61 keys with velocity Keyboard, Hobbies & Toys, Music & Media, Musical Instruments on Carousell
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Casio CTK-631 Midi Music Keyboard - 61 Key Piano - 1999 - YouTube
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9V 1A 5.5mm*2.5mm Adapter For Casio CTK-631 CTK-481 Keyboard Power Supply Cord | eBay