Dual monitors work on a MacBook Air, but you'll feel it.

Yes, DisplayLink adapters let you run two external monitors on a MacBook Air (even the M1/M2/M3 models that natively only support one external display). But there’s always a catch.

The trade-off is all about performance. DisplayLink works by compressing the video signal over USB, then uncompressing it in software. That means you’re leaning on the CPU for every frame, not the dedicated display engine. For static work—spreadsheets, email, text editing, code—you won’t notice. For video playback, scrolling-heavy sites, or anything with motion, you get stutter and lag. Gaming is out.

You also sacrifice a USB-C port for the adapter, and the DisplayLink driver can be finicky with macOS updates. Sometimes it just stops working until you reinstall. It’s not a “set and forget” solution.

If you absolutely need dual external monitors on a MacBook Air, it’s a usable hack. But if you can survive with one external monitor and the laptop’s built-in screen, do that. It’s smoother and way less headache.

I’d only go DisplayLink if the extra screen is a must and you’re willing to put up with occasional glitchiness.