USB-C vs USB4: What the connector and protocol difference means for you

USB-C and USB4 are frequently confused, but they refer to entirely different things. USB-C is a reversible physical connector standard introduced in 2014, while USB4 is a 2019 data transfer protocol that defines performance capabilities. USB4 guarantees speeds of 40Gbps, DisplayPort support, and Power Delivery, and always uses a USB-C connector. However, not all USB-C cables support USB4, making it important for consumers to check specifications before purchasing. Understanding the distinction can help avoid buying incompatible or underperforming cables.