Free Mac app WhatCable tells you what each of your USB-C cables can really do
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https://9to5mac.com/2018/08/22/how-to-choose-a-usb-c-cable/" rel="noreferrer noopener" target="_blank">We’ve talked on a number of occasions about the problem with USB-C cables: namely, they all look alike but can have https://9to5mac.com/2026/06/24/can-you-save-money-with-a-usb4-cable-over-a-thunderbolt-4-one/" rel="noreferrer noopener" target="_blank">very different capabilities.
Google addressed this issue in Chrome OS several years ago, and we suggested at the time that https://9to5mac.com/2022/05/27/usb-c-alert-feature-apple-mac/" rel="noreferrer noopener" target="_blank">Apple should copy it.
That hasn’t yet happened, but there’s now a free Mac app, WhatCable, to turn your Mac into a hardware cable tester …