two AC1900 (model EX6400)

Thanks, I saw that.

I have a different question now.

First my setup...

I have a router (with the WiFi turned off) connected by Cat5 cable to a Ubiquity Unifi WiFi end point. The Ubiquity is what broadcasts the Wifi signal in my home. Because the signal is not strong in the back of my home, I added the Mesh extender. It has helped in one part of the house but I still and not getting a strong signal to two of my outdoor security cameras. If I move the mesh extender closer to those two cameras, then it isn't always getting a good connection signal from the Ubiquity.

I'm now considering putting the mesh extender closer to the Ubuiquity end point so that it gets a good strong signal and can provide good coverage at one of the home and also add the Netgear Poweline 1000mbps Wifi gigabit essentials edition so that I can place it closer to the outside cameras at the other end of the home and hopefully get a better signal to them. (By the way, if you have a better Power Line product that I should consider, that would be helpful.)

My question is...Will adding the PowerLine adapter work better than trying to put two mesh extenders in my home?

Is it correct to state that the signal from the Ubiquity to the mesh extender, then on to the security camera will not be as strong or as reliable as getting the Wfi signal from the powerline adapter placed closer to the outside cameras?