See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
This is a single-band version of the WB222.
"WB222", "250-02062-060", and "©2010,2011 Atheros" is silkscreened on the front of the module in the FCC photos. The Atheros logo is emblazoned on the back.
"WB222-060-D1250" and "AR5BWB-00222A(HT0730110)" is printed on a label affixed to the shield of the device in the FCC external photos.