Must have been a bad batch. 4 out of 5 corrupted my data. Small files seemed normal. Large files are copied to them, seemingly fine, but corrupted when read. Did the same thing while testing on different PCs. I spent a lot of time trying to figure out it was the flash drives and not my PC/server hardware, especially after 3 of them failed. At first I figured it couldn't be flash drives and went down the rabbit hole to eliminate everything else. Then I tried another brand and everything worked fine. I hope they sort out their quality control. 5 stars for an excellent return policy!
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