1: General projectors use VGA cable to connect the computer for normal use;

 

2; Currently, there are a small number of projectors on the market that use HD cables to connect to computers;

 

3: If you are using a thin and light notebook, there are many such notebooks, such as the Apple AIR series, there is no VGA interface, this time you need to buy an Apple interface to VGA cable;

 

4: The same is true for a small number of other notebooks without a VGA interface. You need to purchase a VGA cable or adapter to connect the projector properly.