That thing is fast! I connected a Lexar 2000x HCII 300Mbps 64GB SD card to a Satechi USB-C UHS-II card reader and then plugged the card reader directly into the USB-C port on my Asus Maximus IX Hero motherboard. 1284 16.6 MB graphic files in one minute and 29 seconds. The average read speed was 258 MB/s and the average write speed per card was 191 MB/s. I would say it was a great achievement!
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