Works with USB (Universal Serial Bus)-C computers The convenient, reversible USB (Universal Serial Bus)-C connector means that you no longer have to worry about which way is up & its unique design allows easy access to neighboring ports. Super fast transfer speeds With SD UHS-II card transfer speeds, you can move files quickly & be on the road again. SD card compatability Works with UHS-II, UHS-I & non-UHS SD cards Specifications Read Speed: up to 312MB/s Form Factor: Works with non-UHS, UHS-I, & UHS-II SDHC & SDXC cards Interface: USB (Universal Serial Bus) 3.0