Connect a VGA display or projector: Use a USB-C VGA Multiport Adapter to connect the display or projector to a Thunderbolt / USB 4 port on your MacBook Air. Connect an HDMI display or HDTV: Use a USB-C Digital AV Multiport Adapter to connect the HDMI display or HDTV to a Thunderbolt / USB 4 port on your MacBook Air.
How do I connect my MacBook Air to an Epson projector with USB?
Set the USB Type B setting in the External menu to one of the USB Display options. Connect the cable to your projectors USB-B port. Connect the other end to any available USB port on your computer.
How do I share my Mac screen with a projector?
Open the Apple Menu (click on in the upper-left corner) and select System Preferences. Click on the Displays icon. Click on the Detect Displays button to synchronize the images on the MacBook and the LCD projector or TV.