WhatPort
WhatPort is a macOS menu bar utility that shows live USB-C and Thunderbolt connection details, speeds, power, and port activity on your Mac.
What is WhatPort?
WhatPort is a native macOS utility for checking what your Mac’s USB-C and Thunderbolt ports are doing in real time. It helps users troubleshoot slow drives, charging surprises, display link issues, and unreliable docks by showing connected devices, negotiated speeds, protocol details, and reported power data from the menu bar. The app is designed for people who regularly connect peripherals and want a clearer view of how each port is actually being used. On supported Macs, it can also show more detailed port information such as lane activity, cable details, and live power graphs. A free version covers live inspection, while Pro adds history, alerts, and export features for longer-term monitoring. WhatPort is published by Darryl Morley and runs on macOS 14 or later.
Key features
- View live USB-C and Thunderbolt connection status from the menu bar
- Check negotiated protocol and connection speed for attached devices
- Inspect port details such as power data, cable information, and lane activity
- Monitor charging behavior and see why a connected charger may not be charging the Mac
- Review connection and power history with alerts and export in the Pro version
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Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Safe
WhatPort is a legitimate Mac utility for reading port and connection information, and its normal behavior is observational rather than system-changing. It may need access to hardware and connection data so it can report power, protocol, and device details, which is consistent with its purpose. Removing the app simply stops its monitoring features, and any optional launch-at-login behavior only affects whether it starts automatically.
Recommendation: Keep WhatPort if you use USB-C, Thunderbolt, docks, displays, or charging accessories and want clearer diagnostics on your Mac. If you do not use it for port troubleshooting or monitoring, you can remove it without affecting macOS beyond losing its connection and history features.
Common paths
/Applications/WhatPort.app
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