When you connect a laptop to a full-featured USB-C docking monitor using a single USB-C cable, which combination of signals can that one cable carry at the same time, assuming both ends support all USB-C features?
USB-C was designed to consolidate functions: it supports USB Power Delivery (up to 100 W or 240 W with PD 3.1), SuperSpeed/USB4 data, and video through Alternate Modes such as DisplayPort or HDMI—all concurrently over one cable.
Power-only cables exist (charge-only) but they cannot move data or video.
Some configurations omit video, even though DP/HDMI Alt-Modes can coexist with data lanes.
Video-only (passive) cables ignore power delivery and USB data.
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What is USB Power Delivery (PD)?
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