USB cable schematic Cable Pinout -
Pin
one side 		Signal Description Pin
other side
1 USB Vcc (Vbus)

usually RED, wire should be 20-28 AWG

1
2 USB Data - usually WHITE, wire should be 28 AWG 2
3 USB Data + usually GREEN, wire should be 28 AWG 3
4 GND usually BLACK, wire should be 20-28 AWG 4

4 pin USB A / USB B / mini-USB jack connector layout 4 pin USB A or USB B plug connector diagram
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