Which satellites compatible with RBK50?

[tishij20]

I am using the RBK50 kit (Router + Satellite). If I understand correctly they are RBR50 and RBS50.

If I want to add another satellite, does it need to be same RBS50, or can I just shop any satellites in the Netgear/Nighthawk offering?

Also, how many satellites max can I have in the system?

Which satellite would you recommend?

Thanks!

[FURRYe38]

https://kb.netgear.com/000065169/Which-Orbi-routers-and-satellites-are-compatible

[CrimpOn]

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

I would pick up another RBS50 on Amazon (renewed) or eBay (used).