hi rodrigo,
you should look for an wireless dongle that is supported by your operating system or has the driver/kext for your system.
there are not that many options for you - i know that there are a few chipsets are supported by os10.
the easiest way to find something that works is the hardware list for kismac, kismac is/was a very popular wardriving program for mac computers - on their webpage are the working and not working devices for that program - if it works with kismac - it works with os 10
CLICK here
crwdns2934105:0crwdne2934105:0
crwdns2934113:0crwdne2934113:0
crwdns2915270:0crwdne2915270:0
crwdns2889612:0crwdne2889612:0
0