Dell C640 and wireless

Will this wireless card work with a C640? I searched the net and here for about 4 hrs but I can't find any referance to it.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330256882962&ssPageName=ADME:X:AAQ:US:1123

I'm usually good at finding things like drivers and the like but this one is makeing me breakdown and ask here.

Thanks for ya'lls help!