The Mac app that reveals your USB-C cables' true capabilities
WhatCable eliminates the guesswork around charging and data transfer speeds.
1Solving the USB-C confusion
While all USB-C cables look identical, their charging speeds and data transfer capabilities vary dramatically. WhatCable instantly analyzes every cable you plug into your Mac, removing this uncertainty in seconds with clear specifications.
2Unmasking cable specifications
An iPhone's USB-C cable and a Thunderbolt 5 cable may appear the same, but one delivers 60W charging at 480Mbps while the other offers 240W and 80Gbps speeds. WhatCable detects these critical differences to help you choose the right cable for your needs.
3Remarkably simple to use
After downloading and installing, WhatCable automatically displays key specs of connected USB-C cables - including max charging capacity, data transfer speed, and active/passive status - without requiring technical knowledge or complex setup.
4Comprehensive testing results
In tests with various cables from Apple's original to Thunderbolt 5, WhatCable accurately identified each cable's capabilities. It clearly showed which cables were suitable for MacBook charging or high-speed SSD connections.
5Pro version's advanced features
For a one-time $14 payment, WhatCable Pro offers real-time power monitoring, cable history tracking, and weak link analysis in your setup. These professional features are particularly valuable for users with external displays or docks.
6Bringing clarity to USB-C
WhatCable lets you enjoy USB-C's universal standard without the cable confusion. This practical tool is essential for any Mac user wanting to make sense of their cable drawer and select the right equipment for each task.