Velocity wise, we could only extract a max video clip read through velocity of 223MB/s and 198MB/s write charge from our UHS-II SD card - not dreadful, but a way shot of A few other readers we have tested. Impression transfer efficiency is even worse even now, with 152MB/s browse https://supertop-shop.com/usb-3-0-sd-and-micro-smart-card-reader/