Make sure this fits by entering your model number. NO MORE DEAD ZONES: Whole home mesh WiFi coverage of up to 5,000 sq. ft. and 25+ devices. Mesh technology helps you stay connected as you roam around your home using a single network name. Extend coverage up to 2,500 sq. ft. with additional satellites.(sold separately). TRI-BAND BACKHAUL: A dedicated band between your Orbi router and satellite frees up the other two bands for maximum speed to your devices.