Identify the Ports on Your Mac
The key to connecting your MacBook to a projector is understanding the ports on your computer. Many MacBooks don’t have a built-in HDMI port, but you can still connect with HDMI using a port adapter. Apple publishes user guides for its products so you can see which ports and adapters you’ll need. You can also look at the Apple port shapes and symbols guide or enter your Mac’s serial number on the Apple Tech Specs page to guide you. Here’s an overview of the types of ports found on Macs.
HDMI Port: If you have an HDMI port on your Mac, you can connect directly to a projector with the projector’s HDMI cord without using an adapter. The HDMI cable is likely included with your projector.MiniDisplay Port: A MiniDisplay port looks a bit like a smaller version of an HDMI. You’ll likely need an adapter, but your projector may include one. USB-C or Thunderbolt Port: You can choose either the official Apple USB-C Digital AV Multiport adapter or any other product with a USB-C plug on one end and an HDMI port on the other. If your projector is newer, it may also come with the piece you need.
How to Connect Your Mac to a Projector
Once you have the cables and adapters you need, you’ll just need to connect the two devices. Power both your computer and projector up and connect them so they can “see” each other. If your projector has a lens cover, slide it open. Once you connect the two, your Mac should automatically detect the projector and output its display to it.
How to Customize the Display From Your MacBook
Once you connect the projector to your MacBook, you can adjust the picture a few settings in System Preferences. Here’s where to find them. To change this setting, click the Arrangement tab at the top of the window.