Actually, not sure I fully understand. That product seems to be an access point, which are usually used, err, 'upstream' of the bit before the internetz fly through the air. Is there something special about this one that means it could be used basically as a big WiFi adapter? Or is it just a case of sticking a usb Ethernet adapter between the WAP and the computer, and would that work with pretty much any access point?
Another edit: I know some unifi APs can do wireless uplink, and the uplink APs are unifi, but I don't have access to configure them, so the 'downlink' AP will have to just act as a dumb wi-fi adapter.