How to Use a Dual Video Monitor VGA Y-Splitter Cable. If you run a business and use multiple monitors in your office, you can output the video from your computer to two monitors, even if your ...

Need a little more desktop real estate, or just tired of hunching over a small screen all day? Here’s how to give your back—and eyes—a break.

You can add an extra display to your Mac (and in some cases three displays). Here's what you need to connect an external monitor, including the right adapter.

Select "Second Screen" from the list of options. Click "Extend" to extend the space of your desktop across your two monitors. The settings automatically save.

Let's say you want a second screen for your Mac to extend or mirror your current display. If you're running macOS Catalina or higher and own an iPad, you can do it through a feature called Sidecar.

Extend your Mac's display onto a smaller, portable screen, by using your iPad as a secondary monitor and the Duet Display application for OS X and iOS.

Whichever app you try, using your iPad or Android tablet to extend your screen might boost your productivity. Or, of course, you could use the tablet on its own as a productivity-boosting tool.