I have a 2007 imac 20" Yes I know it is old, but it still works and does all I need so please no "throw that old junk away" type comments. It has wifi G extreme card. At work we have a few old macbooks which are broken. So pulled a tested good wifi card (AR5BXB72). Can I fit this to my imac to give it N wifi? Also this card has 3 antenna plugs as think it does bluetooth too. My mac I think (from ifixit guide) only has two. If it would work, which two do I connect to? I would like to buy a newer imac but just cannot afford it. So need look at upgrading mine. I dont use it for all that much just web browsing and itunes for my iphone really. My macbook is my work horse really. Im going to bin the 250GB HDD for a 480 SSD at same time if it is possible to swap the wifi card. If not then just the SSD.