AC1200 Whole Home Mesh Wi-Fi System, 3 packDeco E4 AC1200 Whole Home Mesh Wi Fi System Deco uses a system of units to achieve seamless whole home Wi Fi coverage ? eliminate weak signal areas once and for all! With advanced Deco Mesh Technology, units work together to form a unified network with a single network name.? Devices automatically switch between Decos as you move through your home for the fastest possible speeds. A Deco E4 three pack delivers Wi Fi to an area of up to 4,000? square