$45 https://www.amazon.com/dp/B0DYJL5Z67
replyThis is the one I use and I quite like it. I've had it for a little over a year and a half. I used it to sort (or trash) all my cables and to test new incoming cables.
I just got this one a few days ago so it's kinda weird I've seen it mentioned or posted about multiple times since. Guerrilla marketing?
replyAnyway, it's definitely better than having nothing, and tests resistance as well. I tossed a couple low value/duplicate/high resistance cables because I've got too many just lying around causing clutter. Also helped 'confirm' my good (e.g. TB4+) cables that weren't labeled clearly are indeed good cables - granted, this is only as dependable as the marker chip the manufacturer added.
If you just want to know what wires sets you have in your USB cables you can get the Gikfun "USB Cable Tester - Fast Check for Type-C/Lightning/RJ45 | Tests Charging Data Transfer | Continuity Check Quick Cable Sorting"
replyIt's only $14.
It even offers test pads you can use to test the cable with a much more expensive multimeter.
I'm not so sure about cheap. All the cheap ones I've tried have been pretty flaky, and ended up in the junk bin. I picked up this guy for work: https://bit-trade-one.co.jp/en/adusbcim/ and it's been pretty good. That was a while ago though, and some of the cheaper ones might have caught up.
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