There are a multitude of colors that your USB ports may come in, and they all have a specific meanings, with Yellow hinting ...

A USB 3.0 connection requires five conductors, and the connectors are blue in color. Backward compatibility is typically provided by including four additional conductors, as shown in the image here.

USB ports come in so many different colors because not all USB ports are created equal. Each color acts as a visual representation of a specific USB standard or feature, giving users an idea of ...