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How to turn your old tablet into a portable monitor for your Windows PC

Stop letting your old tablet collect dust and turn it into a second monitor for free in under two minutes.
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Yes, You Can Use Your iPad As a Second Monitor Without Sidecar

Sometimes you just need a quick and easy way to connect a second monitor, without dealing with a whole new display. Apple's Sidecar feature lets you turn your iPad into a second display for the Mac, ...