Compatible monitors for Macbook air

If your MacBook Air is running macOS 15.3 (Sequoia), as shown in your tag line, I believe that it would have to be one of these models:

• An Intel-based MacBook Air (Retina, 13-inch, 2020) that can drive up to two external displays.
• A M1 or M2 MacBook Air that can only drive one external display.
• A M3 MacBook Air that can only drive one external display with the lid open, two with the lid closed.

Mac Manuals and Downloads - Apple Support

That capability will depend on exactly which model MacBook Air you have - more specifically which Apple Silicon M chip it has.

The M2 cannot do a second monitor. It can't do the internal monitor and another external monitor. The lid must be closed to use an external monitor.

The M3 can do the built in monitor + one other, or two external with the lid closed.

MacBook Air 13- and 15-inch with M3 or M2 - Tech Specs - Apple

❝Display Support

M2

• Simultaneously supports full native resolution on the built-in display at 1 billion colors and:
• One external display with up to 6K resolution at 60Hz

M3

• Simultaneously supports full native resolution on the built-in display at 1 billion colors and:
• One external display with up to 6K resolution at 60Hz
• Close the MacBook Air lid to use a second external display with up to 5K resolution at 60Hz ❞