See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
Network Everywhere (Linksys) NWU11B
For a list of all currently documented RFMD (Qorvo) chipsets with specifications, see RFMD.
Per the drivers, there may be multiple revisions of this device (possibly corresponding to WUSB11 revisions). The data here may not be wholly accurate.
NWU11B serial numbers may begin with NDN0 (N [Gemtek vendor code] + DN [Product code]).
The device denoted by the FCC ID PKW-NWU11B seems to be a Gemtek WL-780.