A Universal Serial Bus (USB) is a standard connection interface for computers and electronic devices. Coursera's USB skill catalogue equips you with knowledge about the design, architecture, and utilization of USB technology. You'll learn about USB protocols, data transmission, power management, and device enumeration. Furthermore, you'll understand how to design USB devices, troubleshoot common USB issues, and develop software to interact with USB hardware. This knowledge will be beneficial for roles in hardware engineering, software development, IT support, and other technology-related fields.