USB4
USB4 is a high-speed data transfer and display connectivity standard developed by the USB Implementers Forum (USB-IF), building on the Thunderbolt 3 protocol. It supports speeds up to 40 Gbps, enables multiple data and display protocols over a single USB-C connector, and is backward compatible with USB 3.2, USB 2.0, and Thunderbolt 3. The standard simplifies connectivity by unifying data, video, and power delivery into one versatile interface.
Developers should learn about USB4 when working on hardware integration, peripheral development, or systems requiring high-bandwidth data transfer, such as external GPUs, high-resolution displays, or fast storage devices. It is essential for designing modern laptops, docks, and accessories that leverage USB-C's capabilities, ensuring compatibility with the latest performance and connectivity standards in consumer and professional electronics.