tech
This free Mac app reveals the truth about your mystery USB-C cables
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TL;DR
- WhatCable is a free tool for Macs with Apple Silicon chips.
- It reads data already collected by the Mac's port controller chip regarding attached USB devices and cables.
- The app can identify cable ratings for speed (e.g., USB 2.0, 10Gbps), power (e.g., 60W, 100W), and voltage.
- It helps users determine the actual performance of a USB-C connection and identify bottlenecks.
- WhatCable can detect issues like slow data transfer speeds or inadequate charging capabilities.
- The creator, Darryl Morley, plans to keep the core version free and is developing a Linux port.
- A paid Pro version offers additional features like a real-time power monitor.