Originally Posted by DaveMishSr
You have no PCIe slots other than one graphics card slot so you will have to go with USB. Personally, I had great luck with TrendNET's TEW-684UB when I was running a RT-N66U. I also have a EA-N66 I got as an open box special but its expensive and the TEW-684UB is just as good, for a lot less.
I'm currently using a Linksys AE3000...I was happy to see it connect at 450Mb/s on 5GHz. Haven't measured the actual throughput, though, but I had it on my main computer (a laptop) that I do a lot with (streaming video, downloading DVD's, etc.), and it did fine for several days, no problems.
One afterthoght, though, it is a "manual" install on Windows 8. You download the Windows 7 driver, unzip it, and point the Device Manager entry for the AE3000 at it, and the Device Manager installs the driver. Works well on Windows 8, but Linksys/Cisco/whoever should really add Windows 8 installation pieces.