Gameseek Mayflash Gamecube Controller Adapter for WiiU & PC Connect up to four GameCube controllers (or wireless GameCube controllers) to a Wii U system and PC USB Switch to Wii U or PC mode by using the switch located on the side Supports the GC/Wii Emulator Dolphin Compatible with Windows XP, Vista, Windows 7,Windows 8,32 bit and 64 bit and Mac OS under the PC mode Supports the built-in Vibration Feedback with no delays by plugging the two USB ports of the adapter into your Wii U system or PC USB connector ports.