I am running on 500mbps Unifi, currently using 3 x Tenda triband mesh on wireless backhaul but only support up to 300mbps and want to upgrade.

Which mesh is good for wireless backhaul and can support 500mbps under 2.4ghz?

Actually any brand will do the job, just looks for WiFi 6 technology. Those from Tenda, TP-Link, Asus etc. they all have the latest wireless technology with MESH.

Also is all your device able to support WiFi 6 ? Ensure that most of your devices like Smartphone, Laptop, IoT are able to make use of it, else it will be a waste investing to WiFi 6.

Just like myself, I have 500Mbps Unifi, but most of my home appliances only supports up to WiFi 4, so no point for me to invest into WiFi 6 yet...
To fully utilized the 500Mbps speed, I usually connect my computer via LAN cable, ensuring 100% speed & reliability.


Hope this helps...

Which mesh is good for wireless backhaul and can support 500mbps under 2.4ghz? --> 2.4GHz max speed is 100Mbps

weird iirc tri-band(2.4Ghz, 5Ghz & 5Ghz) should allowed to use dedicated is 5Ghz(should be top), then your device still can connect using 2.4Ghz & 5Ghz,
dual-band either ranger/penetration vs throughput. backhaul using 2.4Ghz limited speed, backhaul 5Ghz limited range. your device can only connect either 2.4Ghz or 5Ghz

to really archive 500Mbps without any bottleneck, best using wired as backhaul (nothing beat this and effective)

wireless backhaul, unforeseen radio congestion during peak time (condo, apartment, flat). density of the wall/floor and placement
you will get better speed in morning 9am, same place same location 9pm, the speed seems to slow down.

sorry I'm not a mesh user.