I am sorry if this has been posted earlier. I bought a used 2006 Mac Pro yesterday which didn't came with wireless card. So I started looking for one and found this one on ebay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260639149033&ssPageName=ADME:X:RTQ:US:1123 Although it says a Macbook pro but seller has mentioned that it is compatible with 2006 Mac Pro as well. When I contacted him he says as long as the computer has mini pci express slot it will work. Can anyone suggest if this is the card I can go for? I appreciate any help.