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I had a couple including one USB one that I later modified to use to scan regular bar codes.
I pulled up Wikipedia to look up who created them, and apparently he changed his name after they failed. He was also on Curse of Oak Island searching for gold and was involved in ballot shenanigans in the 2020 US presidential election where he was notable for supposedly inventing a machine to find bamboo fibers on ballots.
The original ones had a PS/2 port, where you would just insert it in between your keyboard and the computer, and when it scanned it effectively just was entering the keys as though they had been typed out on the keyboard itself. The very end days for this product they introduced a USB version but it’s by far the less common.