Speed clever, we could only extract a max video browse pace of 223MB/s and 198MB/s write rate from our UHS-II SD card - not dreadful, but some way shot of Several other readers we have tested. Image transfer overall performance is worse even now, with 152MB/s browse and 98MB/s compose https://supertop-shop.com/usb-3-0-sd-and-micro-smart-card-reader/