AiMesh AX6100 WiFi System (RT-AX92U 2 Pack)
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This WiFi system is innovative and let the end user deploy a large WiFi coverage at home very easily.

...compared to the AC competition, it regularly achieves the highest speeds and performance is also impressive in the graphs of the averages.

Hardware Info Community Awards 2019

compared to the AC competition, it regularly achieves the highest speeds and performance is also impressive in the graphs of the averages.

Asus, however, also offers some clear advantages: if you have a typical WiFi 5 client within range of your primary node, it will perform just a little better than the rest, if you have a solid WiFi 6 client, then the performance will approach that of a Gigabit LAN connection .

The RT-AX92U is the fastest mesh set at the time of writing (through testing via WiFi 4/5) that I have personally experienced.
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...then you have both the best performing and the most extensive mesh system on the market.

If you want the absolute maximum performance and money does not play any, or a minor role, the Asus GT-AX11000 is the router you want.

At 2.4 Ghz, it is the RT-AX58U from ASUS that steals the show with 332 Mbit / s.