More ports mean more options! The HDMI port will provide high-quality video transmission in 4k format. Thunderbolt 3 will allow you to transfer data, charge devices and broadcast video at the optimum speed. The USB-A 3.0 port provides a maximum data transfer rate of up to 5 Gb/s. SD and TF card readers enhance device capabilities. This aluminum hub is a perfect addition to the latest MacBook Pro / Air models in terms of functionality and design. Extend your MacBook capabilities with no extra effort!