he only has one wifi antenna , so max 433Mbit. If your Router/Access Point and your client has more then you will also have more speed. 867Mbit with 2 antennas and so on

What wifi router do you use? Also, do you use custom firmware?

I use Mikrotik access points: https://routerboard.com

I use several models, check out the dual concurrent triple chain ones like: https://mikrotik.com/product/RB962UiGS-5HacT2HnT

I wrote a little bit about my set-up here: https://news.ycombinator.com/item?id=14743866

> Also, do you use custom firmware?

No, just standard Mikrotik firmware.

Thanks for the reference, I picked one up to play with :) I used to hack on a grotty old cisco router for my home network but it's been ~15 years since that was relevant.