At first, when I saw a 40 MB read write, I thought to return this Fake back, but then it turned out that in fat32 the speed reaches 80 (seen on the screen), and even the first few seconds on custom firmware I managed to get 100+ for writing to exfat, probably thanks to the cache. And so exfat speed drops to about 40, or even lower. Those. it's good if you have half of the declared speed, both for writing and reading. Maybe it's just on my phone.
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