3.Click on the monitor icon to bring up the configuration menu. When connecting the USB External VGA Video Card or USB External DVI Video Card to your computer, it is configured to function as the Extended Mode by default, and you can also change to Mirror mode as you prefer.
Note:
When in Extended Mode, you will see the wallpaper displaying on the monitor/display that is connected to the USB External VGA Video Card or USB External DVI Video Card.
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