2 in 1 Applicatioin Type-c / USB 3.0 Read and write SD or Micro SD card type. | USB 3.0 Rocket speed for read and write up to 5Gbps Read video or audio in memory card directly without buffer SD 3.0 transport protocol | Support OTG function Manage your files directly on any devices with type c port or through USB on computer or laptop | Support SDXC/SDHC/SD/MMC/RS-MMC/Micro SD/TF /Micro SDXC/Micro SDHC/UHS-I memory cards No driver required | Maximum Memory Size Supported: Up to 2TB | Tips: Do not insert 2 memory cards at the same time. Only 1 card can be recognised