You may have to get that information directly from the manufacturer. http://www.pandawireless.com/Contact
I have been using a Panda PAU06 adapter for some time and it has been quite dependable and has a removable antenna. They also offer an industrial version for embedded applications. Still, I cannot find any claim to FCC certification on the device and the packaging is long gone. The Panda wireless web page has no information either. They do offer a contact number in Californica (part of US?
). I do find a FCC ID No. on the tiny Edimax dongle in extremely fine print on the metal housing for the USB connector (but sadly, with a fixed internal antenna). I purchased the Panda from Amazon and it retailed for $14.99. Amazon selling it guarantees nothing about the FCC imprimatur. I can find no information of the country of origin although it is presumably fabricated in the far east so at some point they should be subject to US Customs scrutiny but that is no guarantee either. Call the company.