Real write speed: usb 3 saws at a speed of 24 to 35 MB / s, usb 2 saws at a speed of 6 to 24 MB / s. For example, my old Transcend 2.0 writes stably at a speed of 10-12. First I bought a-data 350, she sawed even steeper on usb 2, fell to 0 and jumped up to 15. I measured the speed by recording from a 3 Giga SSD file.
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