WhatCable Pro is a deep USB-C diagnostics tool designed specifically for Apple Silicon Macs running macOS 14+. While the free version identifies basic cable capabilities, the Pro tier offers advanced, real-time troubleshooting directly from IOKit data—requiring no extra software or root access.
Key Features
- Negotiation Diagnostics: Easily spot bottlenecks by comparing what your Mac port, cable, and connected device support side-by-side.
- Live Power Metering: Displays real-time wattage, voltage, and amperage per port, updating every 2 seconds.
- Hardware & Port Health: Tracks lifetime port errors, resets, and monitors liquid detection (LDCM) sensors.
- Advanced Insights: Offers Power Delivery (PD) contract inspection, cable resistance estimation, and DisplayPort Alt Mode lane mapping.
- Developer Friendly: Includes a CLI monitor mode (whatcable –monitor) and desktop widgets for quick tracking.
What's New
Version 0.13.4:
- Release notes were unavailable when this listing was updated.
Requirements
macOS 14.0 or later
Screenshots
Download File
Size: 7 MB
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