These are things I've found on the Internet. Look upon my works ye mighty and despair.

 

These are the AirPort Cards side by side. On the left is the Original AirPort Extreme Card from the MacBook Pro Core Duo and on the right the AirPort Extreme Card from a Mac Pro. The reason I selected to use the Mac Pro Card is because the card only requires two antenna leads to connect instead of the three required on the Airport Extreme card from a MacBook Pro Core 2 Duo. (via Upgrading the MacBook Pro Core Duo to 802.11n Wireless Connectivity
)

These are the AirPort Cards side by side. On the left is the Original AirPort Extreme Card from the MacBook Pro Core Duo and on the right the AirPort Extreme Card from a Mac Pro. The reason I selected to use the Mac Pro Card is because the card only requires two antenna leads to connect instead of the three required on the Airport Extreme card from a MacBook Pro Core 2 Duo. (via Upgrading the MacBook Pro Core Duo to 802.11n Wireless Connectivity

)

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