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I have a USB A-B type cable, where there are 4 color wires:


Please help me for rest 3 colors: RED, ORANGE and BROWN

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closed as off-topic by JakeGould, mdpc, DavidPostill, Moses, jcrawfordor Nov 2 '15 at 9:10

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question is not about computer hardware or software, within the scope defined in the help center." – mdpc, DavidPostill, Moses, jcrawfordor
If this question can be reworded to fit the rules in the help center, please edit the question.

You don't decide what the function of the wire is from the colour. Check out the pin-outs for connectors. But red is most commonly +5 VDC. Check this out: – Ashtray Sep 20 '13 at 6:53

Their is no standard on the colour the cables inside a USB cable are the only way to know what each does is to trace it from the connector where the standards apply

Diagram for Type A & B

Type A USB

Tracing the cable from the connectors will be the only guaranteed way of knowing which cable is which

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