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This tool for finding bad USB-C cables
(hackaday.com)
This is a most excellent place for technology news and articles.
Mine didn’t come with a case, it’s a very simple circuit so not much concern of ESD causing a problem.
It basically just runs power through every pin on the cable to illuminate corresponding LEDs.
Oh, for sure. Just non-tech friends give me the squint eye when I hand em things like this (I'm known for using duct tape and goop on stuff, haha).