I am so lost and looking at specs everything looks the same, so at this point I just need some recommendations for a Network Adapter. I would prefer a USB one, but if a PCI express has better performance than that would be fine. My budget is no more than $35 please, will go up to $40 if needed.
http://www.amazon.com/TP-LINK-TL-WA850RE-Universal-One-button-Indicator/dp/B00E98O7GC/ref=sr_1_1?s=electronics&ie=UTF8&qid=1392854087&sr=1-1&keywords=wifi+extender
This is a reasonable solution so long as the PC doesn't need to be mobile... they give fairly good speeds when within 4 bars of the original source... beats the hell out of a USB adaptor anyways... just wire it from the wifi extender (and it'll extend the wifi source for other devices)
http://www.newegg.com/Product/Product.aspx?Item=33-704-133&Tpk=N82E16833704133&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=6146836&SID=hkmlcrvnsnc3
Otherwise, I'd go with something like this which will support dual band configuration... of course you'd need a dual band router to use it to it's purpose... this would be better for pure wireless... but the wifi extender serves two purposes and does the job through physical connection