Yes I know there are knockoffs but I have experience in IT and have done extensive testing with these USB sticks and they have proven to be good. They're not lightning fast, but the transfer rate is pretty decent and they hold up to the advertised capacity. If your USB drive is smaller, contact the vendor for reformatting instructions and full capacity will be available again. They work great on Linux and Windows 10; Sorry I don't know about their performance on Macs. The support people are very nice and these devices come with colorful straps. The price is fair for the products and it is convenient that they are sold in pairs. 64GB is the ideal size for many purposes.
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