Products Features :The GameCube Controller Adapter allows you to connect up to four GameCube controllers (or wireless GameCube controllers) to a Wii U system and PC USBWith two GameCube Controller Adapters， up to eight GameCube controllers can be used at the same time Switch to “Wii U” or “PC” mode by using the switch located on the sideSupports the GC/Wii Emulator DolphinSupports 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.The driver is required if you need the vibration feedback on the PC mode. Please download it from www.mayflash.com/Support/Download Compatible with Windows XP， Vista， Windows 7，Windows 8，32 bit and 64 bit and Mac OS under the PC modeAbout product:All photos are taken with actual productsPhotos are for reference only. Due to different display screen may occur color range difference with the product. Manufacturer may change the package without prior notice.