How to connect two monitors with a USB adapter

Written by james clark
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How to connect two monitors with a USB adapter
Connect the adaptor to the VGA port on the back of the monitor. (vga image by MATTHIEU FABISIAK from

Connecting two monitors to a computer makes it possible to view larger projects at once, such as spreadsheets and graphic designs, without scrolling through sections on a single screen. Two different screens of related content can also be viewed simultaneously for comparison purposes, such as blueprints on one monitor and a construction budget on the other. A USB adaptor can connect a second monitor to any unused USB port on the computer without disrupting the first monitor. The set-up takes only a few minutes.

Skill level:

Things you need

  • USB to VGA adaptor

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  1. 1

    Open the computer's CD-ROM drive and insert the software disc that comes with the USB adaptor, then close the tray. Wait a moment for the software CD to start.

  2. 2

    Click the prompt buttons on the computer screen to install the software, which will advance to the next screen with each button click. Restart the computer when finished.

  3. 3

    Attach the VGA plug on one end of the USB adaptor to the VGA port on the back of the monitor, lining up the metal pins in the plug with the holes in the port. Twist the lock bolt clockwise on each side of the VGA plug to secure the connection.

  4. 4

    Insert the USB plug on the other end of the adaptor into any available USB port on the computer.

  5. 5

    Plug in the power cord for the second monitor and press the power button to switch it on.

Tips and warnings

  • Connect the adaptor to the computer and second monitor before plugging in the monitor electrical cord.

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