Realtek Semiconductor (瑞昱半導體股份有限公司) is a company that engaged in research, development, production, manufacturing, and sales of integrated circuits (IC) and silicon intellectual property. It offers broadband access, gateway, network interface, and switch controllers, demodulators, and other communications network products, as well as card reader solutions, USB hubs, PC camera controllers, class-D audio amplifiers, PC and consumer audio codecs, multimedia ICs, etc. The company also provides software and hardware application design, testing, maintenance, and technical consulting services for integrated circuit products.