Deco E4 is the simplest way to guarantee a strong Wi-Fi signal in every corner of your home up to 4000 Square feet(3-pack).Wireless connections and optional Ethernet backhaul work together to link Deco units, providing even faster network speeds and truly seamless coverage.Want more coverage? Simply add another Deco. TP-Link Mesh means Deco units work together to form one unified network. Your phone or tablet automatically connects to the fastest Deco as you move through your home, creating a truly seamless Wi-Fi experience. Network speeds three times faster than previous generation routers, thanks to 802.11ac wireless technology, make Deco capable of providing a lag-free connection to up to 100 devices. Flexible and multifunctional, the Deco E4 includes a variety of features allowing it to serve as a router, access point or range extender. Just choose the mode for your actual network demands and experience the maximum wireless flexibility. Deco E4 is compatible with every other Deco model to form a Mesh network. Expand Mesh Wi-Fi coverage anytime by simply adding more Decos.