Router RBR750

Netgear says this:

https://kb.netgear.com/000062035/How-many-satellites-can-you-add-to-an-Orbi-WiFi-System

i.e. performance is affected by the number of satellites connected to the router (backhaul) using WiFi and by the number of satellites which "Daisy Chain" through another satellite to reach the router.

So "more than 4 satellites using wireless connection to the router" and the more that can be 'wired' to the router the better.

If the goal is 10-20 satellites, no way.