This is an official Nintendo connection tap for connecting GameCube controllers to the Wii U and Switch. It's from the Wii U era, but it's also compatible with Super Smash Bros. on the Switch. Confirmed working on Wii U and Switch 2 as of 2025/10/14. ★Also listing 3 GameCube controllers. Would you like to consider them together? [Product Contents] - GameCube Controller Adapter (WUP-028) [Operation Check] - Tested on Wii U and Switch 2, connecting controllers to each of the 1-4 ports. - Tested with 3 controllers connected simultaneously (couldn't test 4 simultaneously as only 3 controllers were available). [Notes] This is an old product, so there may be scratches, marks, and discoloration from normal use. Please refrain from purchasing if you are looking for a perfect item or are overly concerned about minor imperfections, as this is a used item. There is a possibility of a careless mistake, so if there is a discrepancy between the description and the images, please ask questions before considering a purchase. [Shipping Method] Will be packed with bubble wrap and shipped. Original box is not included. #GameCube #GC #controller #connection tap