Cleaning emailUSB WiFi adapter for FreeBSD 10.3

[Olivier]

Hello,

I am looking for an USB WiFi adapter that would work with my FreeBSD
10.3. preferably something readily available online.

And before you tell me to upgrade, this is a pfSense box, upgrading is
not a solution.

Alternatively, I have one adapter that is recognized as product 0xc811
vendor 0x0bda (Realtek), but the system has no proper driver for it, so
if I could get driver, that could be a workable solution.

TIA,

Olivier
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