Gigabit Capable Mesh Network...

Any recommendations for hardware capable of creating a 1gbps wireless mesh consisting of four points?.. Ideally I’d like something like the diagram below…
Untitled drawing.png
If I can’t get gigabit, what could I expect to get?

-Eric

Also… I would only need wired clients connected to each AP. I am using this to connect 4 wired networks.

You cannot expect much as all radios will share one frequency band. If you need really high speed, make directional ptp links on different frequencies between the critical points and use routing.