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USB-C describes a connector shape. It does not promise a specific data speed, video support, or charging wattage, all three of which vary by cable and port even when the plug fits perfectly.
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The argumentUSB-C is a connector shape standard, not a guarantee of any specific capability. Data speed, video support (DisplayPort Alt Mode), and charging wattage are separate, optional features that a cable and both connected devices must all support independently, and a cable that fits and even charges a phone can still fail to carry a display signal or fast-charge a laptop.
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