All broadband providers are compatible with the Tenda A18 AC1200 Dual Band Universal Wi-Fi Repeater, Broadband/Wi-Fi Extender, Wi-Fi Booster/Hotspot, which has one Ethernet port. Optical routers and gigabit WiFi repeaters work well together. Normal 11AC routers do not perform well when it comes to wall penetration on the 5 GHz band, but the AC1200 Dual Band WiFi Repeater Tenda A18 works well with optical routers for strong wall penetration capacity. Data transmission using A18 to replicate a 5 GHz WiFi network