NOTE: Alfa AWUS036 is the lower-power version – NOT the ALFA 500mW USB ADAPTER (that item is part# AWUS036H)
In order to get the “Alfa awus036” adapter working on an intel mac mini, osx 10.4, i had to download the drivers from the Ralink site. The included drivers on the cd were only for Windows and the native apple drivers did not work. Also, turn off Airport. It works perfect now, as the other item i bought. Thanks for the great deals.
The link to the drivers is: http://www.ralinktech.com/ralink/Home/Support/Macintosh.html