If you don't see that option, or the hotspot and tethering section, your device can't be connected via USB. When your Android device asks if you want to allow access to data, tap Allow. Not all of them do, but if your Android device can connect to a mobile data network you should be able to use the USB connection method. To use a USB cable to connect your Windows PC to the second screen, you will need to be using an Android device that allows USB Tethering.
If you are using an older Android tablet, a USB connection can also be faster and less prone to lag. How to Connect to Your Extra Screen Using USBĬonnecting the extra screen via a USB cable can be a better choice if you are not sure how stable or fast the available Wi-Fi network is.