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USB pins of the four wires inside the USB - Black and Red, White and Green

Updated on May 4, 2013
Diagram of USB wire cord and color coding inside a usb pins - color red, green, white and black
Diagram of USB wire cord and color coding inside a usb pins - color red, green, white and black | Source

USB - Universal Serial Bus

USB is one of the most important cables invented in modern times. USB means Universal Serial Bus. It has a standard of four wires inside. USB has many uses from gadgets to gadgets or from PC to PC.

USB cord - The Four Wires Inside

In a USB cord, there are four wires inside of it. This is very important so as to check if your device is defective or just your USB cord.

We tend to conclude that our device or gadget could be faulty at all times but we forget that the pathways for these devices are carried by USB cable.

Now to check your USB cable, you need to know the code for each wire color. It is better to repair of course than to buy a new one.

This is just very easy.

The wires we are going to tackle is the RED, BLACK, WHITE and GREEN.

The Four Wires Inside Your USB Cable

Now, what are the four wires inside the USB cable?

If we try to slice down and do the skinning of a USB cable, you can find four wires, the mentioned wires above, black and red with white and green. These colors, take note, are common with almost all USB cords.

Red, as standard color for positive wires, has 5 volts. (the voltage is similar even if that certain USB cable has different set of colors)

Black is the ground wire as for negative or ground connections.

White is the positive Data passage or in other symbol the DATA+ (data plus) wire.

Green defines the negative DATA pathways or the DATA- (data minus) wire.

Examples of USB wire and USB device
Examples of USB wire and USB device | Source
USB cord wire photo taken closely
USB cord wire photo taken closely | Source

Variant Color Codes of USB pin wires

USB cord has always four wires inside but if it has different colors, the code also changes.

Another set of colors for a particular USB is the Orange and White with the Blue and Green.

If this would be the case then, this will be our code for each color:

Orange, this time is the positive wire with 5 volts running through it.

White is the ground wire of the negative wire.

Blue is the positive DATA or the data plus (Data+) wire.

Green is the Data- or the data minus, meaning the data negative for file transfer.

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      TWH 23 months ago

      "White is the positive Data passage or in other symbol the DATA+ (data plus) wire.

      Green defines the negative DATA pathways or the DATA- (data minus) wire."

      You have these reversed, Green = +, White = -

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      TWH 23 months ago

      This article has the colors correct:

      https://en.wikipedia.org/wiki/USB

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      renanmba 20 months ago

      actually he is right, Green = - , White = +

      Wikipedia is wrong.

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