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Amazon.com: AC DC Adapter Cord for Casio Piano Keyboard CTK-711EX CTK-811EX Power Supply PSU : Electronics
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CTK-711EX = CTK-1000 synth with built-in floppy drive?! - Classic Casio Discussion - Casio Music Forums
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Amazon.com: AC Adapter for Casio CPS-7 CPS-85 PX-100 PX-300 PX-500 CTK-711EX CTK-811EX Piano : Electronics
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