Connecting external USB WiFI card to Nokia N810
 

I want to ask something. It is possible to Connecting external USB wifi card to Nokia N810 ? I want to connect some USB WIFI card that can do packet injection. I read something about it with Alfa 500mW
http://talk.maemo.org/showthread.php?t=30838

But this card is not accesible in my country. Do you know some other wifi usb card with packet injection that i can connect to Nokia N810 ?
Thank you for reponse. Sorry for my bad english, I am from Slovakia.