WhatCable app lets Apple Silicon Mac users identify USB-C cable specs for free

A free Mac app called WhatCable allows users with Apple Silicon Macs to identify the speed and power capabilities of their USB-C cables. The app works by reading device data that macOS already collects from attached USB accessories but does not normally display to users. Accessible via a menu bar widget, WhatCable provides detailed information about every connected USB-C cable and device. The app fills a gap left by a discontinued $8 hardware cable tester that previously offered similar functionality at low cost.
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