
WhatCable Pro 1.4.0 for Mac
Mac UtilitiesEvery USB C cable looks identical, yet one charges at full speed, the next crawls, and a third fails your display. WhatCable reads the data your Mac already receives from each cable and explains it in plain words: the charging power, the data speed, and any limit that is holding the connection back. Pro goes further for frequent testers, adding live measurements and a memory of each cable over time.
Key Features
- Shows cable charging power, data speed and display support in plain language
- Reads cable marker data to explain why a connection is slower than expected
- Pro adds live power monitoring so you can watch readings change as you swap gear
- Pro keeps a named history for each cable, with a verdict you can check later
- Includes a command line tool for quick checks, scripts and a live dashboard
How to Download
- Open the vendor site and compare the free app with the Pro feature list.
- Download from the official site and install the free app first to check your Mac.
- Buy Pro for the deeper tools, then paste the key into the app.
System Requirements
WhatCable needs macOS 14 Sonoma or later and a Mac with Apple silicon, from M1 onwards. Intel Macs are not supported, because their port controllers do not expose the cable data the app depends on.
FAQs
Why does WhatCable not work on Intel Macs?
The vendor explains that Intel models do not publish the cable data the app reads, so there is nothing to show.
What does Pro add over the free app?
Pro adds live power readings, deeper diagnostics, port health checks and a saved cable history.
Is Pro a subscription?
No. The vendor sells Pro as a single payment that covers up to two Macs, with no recurring charge.








