How many Deco units do I need? Are they all the same?

The TP-Link Deco Whole-Home Wi-Fi System includes three identical Deco units that can be placed wherever you need Wi-Fi most in your home. During setup, you will choose one Deco unit to serve as your primary device. It will connect to your modem to enable internet access for your home. From there, additional Deco units can be placed in any room, and each Deco unit will automatically detect and configure the others to create a seamless Wi-Fi system.

While you could use a single Deco unit as a stand-alone router, Deco works best when multiple units work together as part of a system. One Deco Whole-Home Wi-Fi System has a range of up to 4,500 sq. ft., and most homes will benefit best from the Deco three-pack configuration. For larger coverage, you can add up to seven Deco units to the initial three.