Capability decoder
A USB-C plug tells you almost nothing.
Decode the claims you can see, flag inconsistent combinations, and get the shortest verification checklist for the job you want the cable to do.
Cable label or listing
What a browser can—and cannot—decode
USB-C describes the connector. Cable assemblies may support only USB 2.0 data, high-speed USB, USB4, a 3 A or 5 A current path, and different active or passive limits. DisplayPort Alt Mode also depends on the source and sink, not just the cable.
Best available evidence
- A matching USB-IF certified performance/power marking and public product record.
- An e-marker reading from trusted operating-system telemetry or a capable hardware tester.
- Complete manufacturer specifications for the exact model and length.
- A controlled transfer, charging, or direct-display test.
See the public sources behind these rules · Plan a video payload