Gamecube Controller Adapter (USA Warranty) for Super Smash Bros. [Wii U & Dolphin PC USB] by OneSoul Gamecube Controller Adapter compatible with Wii U and Dolphin emulator on PC Play Super Smash Bros. with up to 4 players using classic Gamecube controllers! Supports rumble feature as well as wireless Wavebird controllers Plug and play functionality using up to 4 Gamecube controllers with zero input lag OneSoul products (distributed by Soul Gaming) offer US based warranty services. This product is backed by a 1-year warranty exclusively from Soul Gaming.