My USB cable has 4 colours, red, blue, brown, and yellow. What are the positive and negative? - Quora
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Ftdi Chip USB RS232 Serial to Rj9 Rj10 4p4c for Ioptron Ieq45 Cem25p Ieq30 PRO Upgrade Cable PC Control Cable - China RS232 Serial to Rj9 Rj10 4p4c and Ftdi Chip USB
My USB cable has 4 colours, red, blue, brown, and yellow. What are the positive and negative? - Quora
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