A "750 router" refers to a Wi-Fi router that supports a combined Wi-Fi speed of up to 750 Mbps. This speed is achieved through a dual-band setup, typically with 300 Mbps on the 2.4 GHz band and 433 Mbps on the 5 GHz band. These routers offer features like extended range, multiple operating modes (router, access point, range extende) security fetures.