I love my 2009 Mac Pro, recently purchased new with the Airport Extreme wireless card preinstalled. It sits next to a 27 iMac I use as a monitor. The iMac connects to my network perfectly well, as does my Macbook Air when placed on the same desk, the point being, the problem isn't signal strength: the wireless reception of the AE card in the Pro just plain stinks! The iMac and Air get more than double the speed of the Mac Pro with the AE card. I searched for solutions but there appears to be no consensus on how to address the problem (lots of people do seem to have it), aside from getting a Mac compatible USB adapter. I've tried the powerline ethernet adapter too, which, perhaps due to old wiring and/or interference in the house, was not much of an improvement. Does anyone know exactly what type connectors the card uses and the make/model of suitable external antennas known to have high gain? Also, if the antenna has different connectors, what adapters do I need? I've tried tech support and a few Mac centric vendors, and everyone seems baffled with no real answers. Thanks in advance.