raphnet. - Dreamcast controller to USB adapter (v2)
raphnet. - Classic controller to Gamecube/Wii adapter
raphnet. - SNES controller to Wii/Gamecube cable
raphnet. - Classic controller to USB adapter - V3
The Raphnet Wii Classic Controller to USB is the real del. It's seriously as good as a Wired Xbox 360 guitar. Legitimately buy one of these if you have a Wii Guitar.
raphnet. - NES controller to Wii/Gamecube cable
Raphnet Classic Controller to USB Adapter V3 Wii Guitar Drum Turntable New Japan | eBay
raphnet. - Classic controller to Gamecube/Wii adapter
raphnet. - Classic controller to USB adapter - V2
raphnet. - SNES controller(s) to USB adapters
raphnet. - Sega Saturn controller to USB adapter (v2)