USB-C Inspector

USB-C Inspector shows what each USB-C or MagSafe cable can do: charging watts, data speed, Thunderbolt, and the device on the other end.

Plug a cable in, pick the port, and read the details. On first launch the extension downloads the official WhatCable CLI and verifies it. No separate install needed.

Requirements

• Apple Silicon Mac (M1 or later). USB-PD / e-marker data is not available on Intel Macs.
• macOS 14 (Sonoma) or later.

Commands

• Show All USB-C Ports — list every USB-C and MagSafe port with side-by-side details.
• Check Connected Cables — same view, filtered to ports that currently have something plugged in.

Optional setup

If you already manage a whatcable binary yourself, set WhatCable CLI Path in the extension preferences. Otherwise the extension auto-detects WhatCable.app / Homebrew, or downloads the official CLI.

Credits

Diagnostics are provided by WhatCable by Darryl Morley and contributors, licensed under MIT. This extension is an independent Raycast frontend and is not affiliated with the WhatCable project.