According to their website, no ethernet driver is needed for Mavericks, only for Mountain Lion.
Thanks for the information. I never found anything provided with the device which stated that nor did I actually see that statement on their site.
At the very least if that driver is targeted to a specific OSX version, don't you think their installer is smart enough to disallow its installation on versions that its not suppose to be installed in? Again, I don't understand they had all this extra time and could not ensure the proper installation at customer sites?