If you’re thinking about buying a wireless card to use with DragonFly, Sepherosa Ziehau recommends cards supported by the ath(4), ral(4) and acx(4) drivers.Â No, I’m not sure which those are.
If you’re after (some measure of) 802.11a support, there was recently a glut of Atheros-based NEC “Aterm” “Warpstar” PA-WL/54AG a/b/g cards in the surplus channel. I can’t say I’ve tested with the BSD ath driver, but they’re supported by madwifi on Linux and it was hard to beat the price.
Netgear’s pre-MIMO 802.11g card is (was?) also Atheros, cheap, and probably performed slightly better (due to higher transmit power) than the NEC. My one encounter with a USR MIMO dongle (Broadcom-based, on Windows) did seem to prove that MIMO hardware blows the previous generation out of the water in an indoor environment, so same might be worth noting if a supported MIMO card actually exists.
DragonFly BSD Digest