The Extend Mode, as its name implies, lets you turn your second device into an extended desktop for your PC. This comes in handy when you want to increase your overall screen workspace.

It handles basic tasks like file transfer and screen mirroring, but the real draw is its Extend feature, which turns your phone or tablet into a second monitor for your PC.

How to use an iPad as a second screen for Windows Windows can’t use your iPad as an extra display out-of-the-box, but there are a few third-party apps you can use as a workaround.

Lenovo launches a laptop with an extendable display, which rolls out from underneath the keyboard at the press of a button.

How to Use spacedesk to Mirror or Extend Your PC’s Screen Onto an Android Tablet Before you can mirror or extend your Windows PC’s screen to your Android tablet, you need two things.