On Mon, Nov 2, 2009 at 11:26 AM, hong zhang <henryzhang62@xxxxxxxxx> wrote: > TL-WN721N is not 11n complied. Huh? TL-WN721N should be ar9271 hardware. All ar9271 devices are single stream devices which means the highest MCS rate is MCS 7. I forget but I believe 11n wifi cert accepts single stream devices now. > TL-WN821N complies with 11n. As per Christian it seems this is an ar9170 device, which is dual stream and using the older Atheros hardware. It certainly has capacity to TX/RX more but remember that it is more expensive too. Single stream devices bring 802.11n hardware price down to a competitive level and kill 802.11g :) Luis _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel