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Amazon.com: T POWER 10V Charger for Lego Mindstorms EV3 NXT 45517, 45501, 8878, 9693, 16523 Ac Dc Adapter Power Supply Cord : Electronics
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Amazon.com: PK Power AC Adapter Charger Compatible with Lego 8878 Power Functions Rechargeable Battery Box Power : Electronics
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Building Instructions for a cable that connects LEGO Power Functions (PF) with Mindstorms NXT/EV3 - Christoph Bartneck, Ph.D.
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