Cisco manufactures routers, switches, and other equipment that carry 80% of the world's Internet communications, making it the highest quality networking brand. Cisco provides enterprise-class wireless repeaters for the networking needs of small, medium, and large businesses and offices. Cisco used to be a senior sponsor of network systems and network solutions for the Shanghai World Expo, leading the industry in terms of professionalism, with high security, strong signal expansion, high transmission density and stability, and high intelligence, according to wireless standards, technical configurations, applicable people and ranges, the price also ranges from more than 600 yuan to more than 3000 yuan, such as the model WAP121-E-K9-CN household repeater, priced at more than 700 yuan, with strong security, including advanced encryption, highly secure authentication and rogue access point detection, to name a few, but it uses an 802.11 n wireless standard that is inferior to similar brands. Many Cisco models support seamless connection without interruption and drop, and its high-power enterprise-class repeater is very suitable for scenarios such as large family homes and commercial places, and can be installed on the ceiling and wall at will.