After talking with Apple Service Provider, the part for the Nehalem Mac Pro 2009 is MB988Z/A. Here are photos of the card before and after my installation. Wires 1 and 2 are connected. Everything works great. I used a very small needle-nose pliers to help me position the antennas correctly before snapping into place.
Therei uploaded some pictures and wrote down the facts.
http://cordisblog.blogspot.com/2009/11/howto-einbauanleitung-mb871da-airport.html
its cables 1 and 3 !!!!!
feedback welcome....
Just installed one in my 2009 Mac Pro. I used wires 1 and 3! Works great.
I bought an second hand Mac Pro 2009 6 core and I tried to install Airport but the cables are not numbered.
Also the antenne cables don't connect to the card.
Do I need a tool to connect the wires? I can't do it with my fingers and my thumb. They don't fit.
http://www.ebay.co.uk/itm/Apple-Air...644518?hash=item5d4b154866:g:~tAAAOSwL7VWn7m9