See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
Wistron NeWeb DNUA-93C2
"48DNUA38.0GA" and "2012/03/28" appears to be silkscreened on the back of the board in the FCC photos.
The device is presumed to use AR9271.