Actually it looks like the TL-WN821N has the AR9287+AR7010 chip-set which is why it doesn't have the 5Ghz range. I have ended my search though, Alfa wireless adapters are fully compatible with BackTrack Linux 4 R2. I found this one that has all the features I am looking for (AWUS051NH) http://www.amazon.com/Alfa-AWUS051NH-802-11a-Wireless-9dBi/dp/B002BFO490 . I was able to confirm its compatibility here: http://www.backtrack-linux.org/forums/hardware-compatibility-list/39064-alfa-awus051nh-works-out-box-bt4-r2.html . Search ended. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html