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Why Are Micro Center Flash Drives So Slow?
(hackaday.com)
This is a most excellent place for technology news and articles.
My daily use USB drive is a Transcend 256GB ESD310, it supports 10Gbps speeds and has been rock solid for me. Technically it's an SSD and not just a "flash drive". I use it both for portable storage and as a boot disk via Ventoy. It has USB-A on one side and USB-C on the other, both are 10Gbps.