How many radios does Atheros AR928X WiFi 4 2-stream dual band mini PCIe card have?

I have a clean x86 install of OpenWRT on ProxMox and passed through my Netely AR9280 ( model: AR5BXB92 ) mini PCIe WiFi 4 "dual band" card to it, along with installing the intel-microcode updates, ath9k driver, and wpad.

Upon rebooting the Owrt system, wireless is functional and can be used successfully on EITHER 2.4GHz OR 5.0GHz, but only a single physical radio is being presented for configuration.

I was under the impression this was a 2x2 card that had 2 physical radios on it.

Am I mistaken or is something up with my setup?

I was hoping there might be a way to troubleshoot, test, or otherwise verify the physical hardware present on the card via linux / CLI means?

Thanks!

Yes, it has single physical radio. Wifi7 is not yet well supported but often come with multi-band.
Max link speed 300Mbps 2T2R 40MHz, very likely possible in 5GHz only.

X 20MHz 40MHz
1T1R 72 150
2T2R 144 300

2x2 means 2 antennas

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Selectable dual band. I don't know of any laptop cards that are simultaneous dual band. The seller describing it as a "600 Mbps" card is wrong.

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There are asiarf with 2 controllers on M2, costs double.

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Thank you very much for the fast answer. Just wanted to make sure I wasn't chasing my tail for no reason... I am good with my assumptions being incorrect, just wanted to make sure my hardware was functioning normally and fully operational despite my quirky setup.

I can live with the 1 radio as it is mostly for testing and other purposes anyways. (My primary home router functions and reaches pretty far already.)

Also, I have a proper WAP I intend to deploy off my ProxMox host as well.

At 2.4GHz with my Pixel 8 Pro phone right next to the wifi antennas I was seeing about 130-140Mbit max throughput iirc.

Hopefully that is about right?

I am not sure how the TxRx units stack up and I know there are losses involved at multiple levels.

I am just happy to finally be getting this side project off the ground after waiting way too long. :slight_smile:

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Yes, you get roughly half of link bandwidth with wifi

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