See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
Ralink.For a list of all currently documented Ralink chipsets with specifications, see
150Mbps Wireless N High Power USB Adapter
"PB-7211-M04G-10" and "2013-12-20" is silkscreened on the board in the FCC photos.