This USB-C slim hub adapter bridges the gap between USB-A and USB-C to connect older devices to your new USB C laptop, expand the single C type port or thunderbolt 3 into 4 standard USB 3.0 female ports. 5Gbps High Speed USB C data hub 4 Ports supports super faster data transfer up to 5Gbps - 10X faster than USB 2.0 (480 Mbps), which allows you to transfer HD movies or large files in just seconds.