The Lexar Multi-Card 2-in-1 USB 3.1 Reader is designed for high-speed transfer of data from a card to a computer, or between two cards.
Included is a dedicated UHS-II SDXC and UHS-II microSDXC card slots, this reader supports transfers of up to 312 MB/s. When working with UHS-I media, transfers will max out at about 170MB/s.

With the Lexar Multi-Card 2-in-1 USB 3.1 Reader both card slots may be used simultaneously, and this unit connects to your host system using an integrated USB 3.1 Ytpa-A port that is also backward compatible with USB 2.0