Tested both flash drives in the package with f3probe (Linux). Both discs have been verified as authentic. Free space is about average for 128GB drives (about 5GB less than some much more expensive brands). Reformatted the partition as ext4 and put about 93GB encrypted compressed files on it. It's only slightly slower than my fastest USB 3 flash drives, nicely built, and with an increasingly sparse, highly visible activity indicator at the end. I'm very satisfied. For comparison, I have 3 popular brands of USB sticks that are half as fast as this one. I will buy them again.
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