How many sat can I add to my current RBK43S I would like to add a outdoor rated one

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

 

Netgear has set up a community forum specifically for the Orbi AC products. Most of the people who watch that forum are more likely to have experience with Orbi and know how to work it better than those of us who follow this router forum:
https://community.netgear.com/t5/Orbi/bd-p/Orbi

Please use this link to the main forum product list to review and choose where to make your posts. 
https://community.netgear.com/t5/NETGEAR-Forum/ct-p/en-netgear

Thank you.