12-in-1 Extended Multi-Function Expansion Dock USB-C for Apple Computer Converter 12-in-1 Extended Multi-Function Expansion Dock USB-C for Apple Computer ConverterProjectors to meet your various needs.It supports TF/secure digital memory card high-speed reading, can solve the problem of Mac computer interface shortage.The Type-C interface saves you time because you can plug in ports at will, regardless of how the interface is plugged in.When connecting a laptop to a TV, projector, or monitor, 4K high-definition resolution provides a visual feast.Every picture is delightful.