What Does the 'C' in USB-C Actually Mean? The Port's Name Explained

Engadget · 2026-11-03
What Does the 'C' in USB-C Actually Mean? The Port's Name Explained

USB-C has become the universal connector for modern devices, from smartphones and laptops to tablets and accessories, especially after Apple adopted it across its product lineup. But many users remain puzzled by the letter 'C' in its name—does it stand for something specific? The answer is simpler than you might think: 'C' refers to the physical shape of the connector, not a technical feature. It is the third major USB connector type, following Type-A (the original rectangular plug) and Type-B (the squarish plug often used for printers). The USB Implementers Forum (USB-IF), the industry body that develops USB standards, chose the designation to indicate a new, reversible, compact form factor that could eventually replace older connectors. Unlike previous versions, USB-C is rotationally symmetrical, meaning it can be inserted either way, eliminating the frustration of flipping a cable. This design, combined with support for high-speed data transfer, video output, and power delivery up to 240 watts, has made it the go-to port for everything from ultrabooks to gaming consoles. Understanding the naming convention helps demystify the technology and highlights why USB-C is more than just a new shape—it's a versatile standard that is shaping the future of connectivity across industries. As more devices adopt USB-C, knowing what the 'C' stands for is a small but useful piece of tech literacy.