Also backward compatible with USB 2.0, 1.1 and 1.0 (speed limited by USB bus).
Super Speed&High Capacity: Ugreen USB Memory Card Reader support SD/Micro SD card up to 512G and allows super fast data transfer up to 5Gbps - 10X faster than USB 2.0 (480 Mbps), which allows you to transfer HD movies or files in just seconds, when your host is equipped with USB 3.0 port.