Apple’s line of notebook computers using the “M1” processor officially support only one external monitor.

To connect three monitors to your rig, you’ll need three video ports.

You’ll need to determine which ports your external monitors have to know what kind of dock to buy.

The Arrangement tab and additional monitor attached.

Assuming your OS is up to date, the system should recognize each monitor.

That’s really it.

In fact, it’s the easiest part.

Three monitors hooked up to a PC running Windows.

Now you have to configure it all.

On a Mac, go toApple>System Preferences>Displaysand then select theArrangementtab.

Each monitor will have a separate control for orientation (landscape or portrait).

On a Windows machine, go toStart>configs>System>Display.

Resolutionis a crucial display setting.

With a triple monitor setup, it can be jarring to drag windows across displays with very different resolutions.

So, you’ll want to decide if consistency or sharpness matters to you most.

Refresh rateis another critical component of any display.