Review on 📸 Amplim 64GB Micro SD Card, 2 Pack MicroSD Memory Plus Adapter - Ultimate High-Speed Storage Solution for Nintendo-Switch, Go Pro, Surface, Galaxy, Camera, Tablet, PC, and More by Michael Straughter

Terrible! Once that microSD card is more than half full (let's say almost 2/3 full), the performance of that microSD card is just disgusting. kb/s instead of mb/s. Below is an image of a performance test I just ran with an SD card. In principle, no operating system can save, read/write data. I will return this item as soon as possible. Some people will say it might just be my computer. I tested this on 4 different PCs. All had the same results.