Realtek Semiconductor (瑞昱半導體股份有限公司) is a company engaged in the research, development, and production of integrated circuits. It offers broadband access, gateway, network interface, and switch controllers, demodulators, card reader solutions, USB hubs, PC camera controllers, audio amplifiers, and other products. The company also provides software and hardware application design, testing, maintenance, and technical consulting services for integrated circuit devices.