[OPNsense 20.1] TP-Link TL-WN651G (Atheros 5212 based) PCI wireless adapter

[Nickolai]

Should I be able to use TP-Link TL-WN651G PCI wireless adapter (Atheros 5212 based) on OPNsense 20.1?

Currently I'm on m0n0wall 1.3.4 where said adapter works fine. However, when I try to boot into OPNsense 20.1, I don't see an option to add a wireless adapter. Also, I can't see any traces of boot-up system messages related to the wireless card.