The Best GameCube Controller Adapter This is the best GameCube controller adapter coverter for Nintendo Wii U system. Play a variety of games on your Wii U using your classic GameCube controller. Invite your pals to join in the fun by connecting up to four original GameCube controllers to your Wii U. Im not sure why so many people are ripping this adapter. Like many other wii u owners who love to play smash, Nintendo did not meet expectations when providing their own official gamecube controller adapter. For this reason brands like Mayflash offered to meet customers demand for a product that was nearly impossible to get a hold of. Pricing it at $40 was an easy compromise as even though the official retailed for $20, the lack of stock allowed scalpers to price the official adapter at 60 dollars+ so 40$ is hardly a bad price. So for the adapter- it works exactly as advertised and has no input lag whatsoever on the Wii U. I havent tested the PC mode but youtube reviews of the adapter p...