Cable, port & data workbench

Separate the requirement, each claim, and the assembled path.

USB-C power, data, video, and tunneling are independent capabilities.

Path checker

Where is the declared data bottleneck?

Compare host, cable, hub or adapter, device, and an explicit overhead estimate.

Open Data Path Checker →
Role checker

Do the two endpoints face the intended direction?

Compare power, USB data, and display roles without connector-shape inference.

Open USB-C Role Match Checker →
Guide

How should certified cable labels be read?

Use explicit 60 W/240 W and Gbps marks without connector-shape inference.

Read the label guide →
Evidence order: exact port → exact cable → exact intermediate link → exact device → observed negotiation or benchmark.