Will this work with my Orbi46?

[IllinoisPrinter]

Will the below item work with my Orbi46 modem with the two satellites RBR20s?

I'm not getting a good connection with just the two satellites.

AC1900 WiFi Mesh Extender (EX7000) Nighthawk® Dual-band WiFi Mesh Extender, 1.9Gbps

[plemans]

The triband extenders work well with orbi tribands. 

That'd be the EX7500, EX7700, EX8000

you can also use the following

RBS20

RBW30

RBS40

RBS40V (tends to be the cheapest)

RBS50

RBS50Y