I use it in a smartphone, recording when connected to a computer via a wire is about 20 MB / s. Through the card reader, the speed is even greater. Recording fullhd video - excellent, without twitching. The only drawback that has surfaced for me is that it is not detected through the card reader and SD adapter built into the laptop. To summarize: excellent value for money, I recommend it to everyone. 03/10/2022: everything is still fine with the card, very satisfied. Now I'm ordering one for my wife.
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