How to connect two monitors with a USB adapter

Updated February 21, 2017

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.

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.

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.

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.

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

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


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

Things You'll Need

  • USB to VGA adaptor
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About the Author

James Clark began his career in 1985. He has written about electronics, appliance repair and outdoor topics for a variety of publications and websites. He has more than four years of experience in appliance and electrical repairs. Clark holds a bachelor's degree in political science.