Orbi mesh system is of 2-3 devices which provides a long reach network coverage in your big home. But if you want to expand it more, you can also use an extender. There is a simple procedure to set up an extender with the Orbi mesh system. Setek range extender would be fine for the orbi device. Let’s Setup Setek WiFi extender on orbi 770 series mesh. https://setekwifiextender.com/how-to-set-up-setek-wifi-extender-on-orbi-770-series-mesh/