See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
Microsoft Xbox 360 Internal Wireless Module (1501)
The FCC documents would indicate that this was meant to be used as an internal wireless module for some Xbox 360 models.
This device was filed in early 2012, but it does not appear to have been used in any devices as of January 2013.