I have a special use case and this chip works perfectly.

For the techies:

I've built my own router using x86 hardware with proxmox, openwrt, adguard home and unbound. I used the small nvme chip on this wifi card as a donor and I'm not using the asus pcie card at all. The Mediatek chip works perfectly well with linux (open source drivers too), can easily do pcie passthrough to the openwrt vm on proxmox and can configure it to be in AP mode (as opposed to client mode like in a laptop). It works flawlessly and my laptop connects to it at 2.3gbps and my phone hovers around 1.2gbps. I have not tested Bluetooth on this chip. WPA3 works perfectly.

The only shortcoming of the Mediatek chip, is that when using it in AP mode, it can only transmit/enable one radio at a time, meaning, I cannot run both 2.4GHz and 5GHz at the same time. So I only transmit on 5GHz and and disable 2.4GHz. This is acceptable for me, none of my devices uses 2.4GHz anymore. Typically home routers solves this by having multiple radio chips soldered to their boards (or use special chips that can do multi mode) and use multiple antennas (usually two per radio), so this is not actually a shortcoming of the Mediatek chip, I can just buy another one and run it at 2.4GHz right next to the 5GHz one, much like a normal home router does. This card supports 6GHz band and it shows in the openwrt setting, but none of my devices can do 6GHz so I'm using 5GHz exclusively. If you care about channel widths, it can do 20/40/80/160MHz on 5GHz band, but not 320MHz.

I tried Intel Wifi modules before, but due to regulatory locks in their firmware (both wifi 5 and 6 cards do this, and they don't respect kernel overrides), I could not get it to transmit at 5Ghz, only 2.4Ghz. Which made it useless for my use case. The Mediatek chip in this Asus card saved my project as it works perfectly.

Its amazing going from Wifi 5 ~800mbps to Wifi 6 ~2.4gbps, massive jump in performance in my home network. Wifi 6 also has much lower interference and latency than 5, I thought I wouldn't notice these but I do! My one Bluetooth audio receiver also no longer makes my remote streaming setup stutter (much less interference in the house). I gave Wifi 7 a skip for now, as none of my devices supports it.

If you need Wifi 6E this is the card to buy. You can remove the actual wifi module from the pcie card if you need a replacement or upgrade in another machine that need an upgrade.

As always, Wootware providing excellent and speedy service.
The adapter itself was easy to install, installed the drivers and all working great.
Recommended.

The PCE-AXE5400 is fantastic. Installation was straightforward, drivers set up without any issues, and the card delivers excellent performance. WiFi 6E really makes a difference.

ASUS continues to impress with their commitment to building reliable, high-performance products. This Wi-Fi adapter feels like a military-grade, future-proof piece of hardware that’s built to last. The design is solid, the performance is outstanding, and it gives me full confidence in ASUS as a brand that delivers quality and durability. Keep pushing the limits and setting the standard for what tech should be.