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Which two of these wires are the positive and negative? I assume it's the red and black but I want to be sure. It's a mini usb : r/AskElectronics
4 wires on a Android phone charger colors red, white, green and black. Which wires are positive and negative? - Quora
Pensar Education - USB Wire Color Code and The Four Wires Inside USB wiring USB is one of them. USB wire is cheap today but it is more cheaper to repair those
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