4 Port GameCube controller USB adapter for use with Nintendo Switch, Wii U, and PC. 

FEATURES:

• 8ms polling rate (comparable to Mayflash adapter).
• Connect up to four GameCube game controllers at the same time. Rumble supported.
• Both USB Plugs required for Wii U, on other systems just the black plug is fine.
• Improved design with less resistance than other counterparts on controller connection ports, great with OEM controllers. No more 'Death grip' on the controller plug.
• The best solution for playing Smash Bros. on your Switch/Wii U.
• Compatible with for Windows XP, Vista, Windows 7, 32-bit and 64-bit Windows 8, 10, 11, and other computer modes for MacOS.

INCLUDED:

• 1x Adapter