3 Things to Know About External Displays on MacBook Air M3

Use USB-C for the best resolution The MacBook Air M3 supports one external display through its USB-C ports with DisplayPort alt mode, driving up to 6K at 60Hz. This works with monitors like the Apple Studio Display or Dell UP3218K.

HDMI adapters cap at 4K 60Hz Almost every USB-C to HDMI adapter is HDMI 2.0, limiting you to 4K 60Hz. Even a rare HDMI 2.1 adapter won’t help because the M3 Air’s controller doesn’t support HDMI 2.1 over USB-C.

Skip the HDMI adapter for high-resolution monitors Plug directly into USB-C for a big, crisp display. Save the HDMI adapter for projectors or older screens.