ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

USB Wire Color Code - The Four Wires Inside

Updated on August 8, 2019

USB wiring inside a USB is just simple.

The common wires are always red, black, white and green.

This hub explains more about the color coding of an ordinary USB cable.

USB cables these days are very common and very useful in our daily lives.

USB cable has the best capability to move or copy files from PC to PC or from any electronics devices.

USB cable has four wires inside.

Most USB cable failure or defects are just right at the four wires inside your USB. Inside each wire has copper wire or the conducting material for transmitting signal purposes.

We will detail all the wires inside your USB.

You don't need to buy a new USB cable.

Unfortunately, some USB cable users tend to buy new electronic device (digital camera, video camera, USB charged cellphone, USB cable copy device, etc.)

They buy new device because sometimes, they thought that the device is defective when only the USB cable has some loss connection.

USB wire color code - The four wires inside
USB wire color code - The four wires inside | Source

Now, in this article, we will know how to detect and reconnect the wires inside the USB cable because it is just very easy. It has only four wires. We will explain more in this hub on how to connect the same color coding of wire inside a USB.

It is easy to connect the wires inside your USB cable if you know the colors there. Basically, if you find that the red wire is disconnected just skin it or remove the insulator of the wire and connect to the same color itself. It is just as easy as that.

You can use soldering iron and soldering lead to fix the connection properly by heat.

Know that the colors of wire inside a USB have various designations for their function. Inside the four wires of a USB has a bronze material which is the conductor to have the proper and complete connection of the circuit.

The four (4) wires inside a USB

It has been mentioned in my previous hub but to clarify more, this hub is made. Now, what are the four wires inside the USB cable?

Color Coding of Wires inside the USB cable:

1. RED Wire - The red wire is the positive wire which means that the power lies on this wire. Any USB powered devices rely on this wire. In some action movies, you may see that to defuse the bomb is to cut the red wire always. This is the live wire. This is the plus sign or the + sign of a wire. The voltage of this wire is just not destructive because it is just 5 volts. This 5-volt wire is in DC or direct current.

2. Black Wire - The red wire is the power but without the black wire which is the ground wire, the red wire cannot function. This ground wire or the negative wire is the wire just to complete the circuit of a certain electronic device. These two wires, the red wire and the blue wire, are the power wires for your USB device.

USB wire color code - The four wires inside. The most common USB problem.
USB wire color code - The four wires inside. The most common USB problem. | Source

3. White Wire - We have the power wires which are the red wire and the black wire. Now, to have the communication with the PC or any electronic device, we need a pathway to transmit the data. Some data must be move to some devices so that you can perform your job well. The white wire served as the data transmitter or the wire where data is moved through the wire. This white wire is the data in negative or in other words data - and this means that there should be an opposite wire for this to have a complete circuit.

4. Green Wire - Green wire is the important wire to complete the circuit of white wire. Green wire is the negative wire for data or the DATA + (data plus). This means that green wire is the pathway for the copying or moving your files from and to the PC device or for some electronic devices.

Giving this simple hub, I suggest making your own repair with your USB. The power wires, the red wire and the black wire are very important in a USB device.

You can even make a small fan or humidifier just by connecting the two power wires of a USB. This is the positive wire and the negative wire. We have here the red wire and the black wire.

The color coding of the wires mentioned above are very helpful in the repair of your PC device that uses USB cable. This is a repair just right from your hands.

Addiotional photo of USB wires and color code
Addiotional photo of USB wires and color code | Source
The USB set of wires in some manufactorer
The USB set of wires in some manufactorer | Source

The color coding of the wires mentioned are very helpful in the repair of your PC device that uses USB cable. This is a repair just right from your hands.

What monitor you and your friends use these days?

See results

This content is accurate and true to the best of the author’s knowledge and is not meant to substitute for formal and individualized advice from a qualified professional.

© 2013 Mark Johann


    0 of 8192 characters used
    Post Comment
    • Mark Johann profile imageAUTHOR

      Mark Johann 

      6 years ago from New Zealand

      @dahoglund Don't worry because I am here to help you. Thanks for dropping by. It is better to repair than buying a new one.

      @chefsref Thanks for voting up Lee. I agree with you absolutely. If there will be problems about USB. Just ask me. Thank you.

    • chefsref profile image

      Lee Raynor 

      6 years ago from Citra Florida

      Hey Mark

      This will be useful in the future. Usually we have to buy an expensive book and wade through a lot of info to reach the info we wanted.

      Voted up


    • dahoglund profile image

      Don A. Hoglund 

      6 years ago from Wisconsin Rapids

      I am not a technical person but I find thi kind of information good to know in case I should need to recognize a problem with the USB.

    • Mark Johann profile imageAUTHOR

      Mark Johann 

      6 years ago from New Zealand

      Hi billybuc, thanks for saying those words. You make me write more hubs. You actually inspire me from your hubs.

    • billybuc profile image

      Bill Holland 

      6 years ago from Olympia, WA

      I think, Mark, that over time these articles will do well on the web. Be patient and wait for them to cycle through the internet. I think the views will come because they are filled with valuable information that many people want to know.


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
    ClickscoThis is a data management platform studying reader behavior (Privacy Policy)