i appreciate the recommendations , but find it a little lame no one was actualy able to answer my question... however i believe i eventualy found my own answer
i browsed threw a bunch of reviews on newegg and a couple replies i found stated...
for Desktops, PCI adapters would perform better because it would allow more power threw the pci bridge apposed to the usb port.
+ my own common sense figures thats probably why pci cards have larger antennas
and a different review stated.. from someone who sounded like he new what he was talking about, i could be wrong though but made sense...
that antenna extentions dont add any gain to the signal, it actualy makes performance a little worse because the lag from the extension or whatever, however allows people to position the antenna in a more receptive area witch inturn is beneficial despite any performance loss due to the extension if thats the only way to gain a position for optimal signal reception.
not the reviewers words lol... just my own interpretation, not going to look them back up.
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anyway, ended up just getting this one... cause its the cheapest, cause the free shipping.. reviews werent to bad either, so it should work im assuming.
http://www.newegg.com/Product/...3166021&Tpk=RNX-G300LX
but thx again. and any info others have to add to this subject id like to be posted even though iv already found the item im looking for.