Adding 802.11n to iMac 4,1 , which antenna to buy?

i purchased broadcom bcm94321mc mini-pci card dell laptop (same 1 in 802.11b/g/n imac 5,1) imac last night.

4,1 comes 1 wi-fi antenna. imac 5,1 has left , right antenna.

question: 1 need complete set in imac? left or right? don't want have take imac apart find out hard way if knows, hope!

thank you!

 

checked service manual, answered own question.

imac 4,1 lacks right antenna. got 1 on ebay $10 shipped. 922-7766 apple part number.

 

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