I got one of that.
The packet injection is about 345pps
And i received 80#/s on 11Mb wireless and 120-130#/s on 54Mb one.
It supports all of that. I got a TOSHIBA A215-S6816
Im planning to buy a USB 802.11 Card as it doesnt have Pcmcia.
BTW, im buying another one to inject with both ones so i could get more packages.