ASUS will use routers you already own for a mesh WiFi setup
 

Getting WiFi to every corner of your home is made much easier these days with a mesh network, which uses a specialized router and individual nodes that can configure themselves. Companies like Netgear, Samsung and ASUS all have kits of varying price...

https://www.engadget.com/2018/01/03/...h-wifi-aimesh/