29th February 2016, 8:03 AM
I'd stick with the official Gamecube to USB adapter myself. They've got them restocked at a few places if you're looking for one. Now, the Windows drivers, those are still unofficial, but they do work.
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." ~ Charles Babbage (1791-1871)