See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
"SL-2511UB-1.00" and "701603470000" is silkscreened on the board in the FCC photos.
This device seems to have also been sold as the Macsense WUA-700.
This card provides the following output when used with wlanng (prism2_xxx)... (more)
ident: nic h/w: id=0x8010 v1.0.0 ident: pri f/w: id=0x0015 v1.1.4 ident: sta h/w: id=0x001f v1.7.4
.. however, the STA firmware may have been upgraded..