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.
Guitar Hero X-Plorer Wired Guitar Controller (Xbox 360) : Video Games - Amazon.com
Guitar Hero X-Plorer USB-C Mod - Parts Not Included
Amazon.com: LEAGY 2Pack Wired Controller USB Breakaway Cable Cord for Microsoft Xbox 360 Guitar Hero : Video Games
Amazon.com: DOYO Guitar Hero Guitar for PlayStation 3 and PC, Wireless White Guitar Controller with Strap for Clone Hero, Rock Band and Guitar Hero Games (5 Buttons) : Video Games
Amazon.com: Xbox 360 Guitar Hero Aerosmith Wireless Guitar Controller : Video Games
Guitar Hero X-Plorer USB-C Mod - Parts Not Included
Guitar Hero X-Plorer USB-C Mod - Parts Not Included
Mcbazel PlayStation 2 Controller to USB Adapter for PC or Playstation 3 Converter Cable for Sony DualShock PS2 PS3 Controllers (NOT compatible with Dancing Mat Guitar Hero)
Guitar Hero 2 Xbox 360 Controller for sale | eBay
Tutorial] How to connect GHL Guitar to your pc - Windows 10 [MUST HAVE 360 DONGLE] - YouTube
Amazon.com: NBCP PC Guitar Hero Wireless Legends Rock Dongle Adapter Bundle for PS3 /Computer Windows/Mac -White (White) : Video Games
Guitar Hero Controller, Guitar Game Controller, 5 Button Wireless 2.4G USB Port PC Guitar Controller Accessories for PS3 for Guitar Hero Rock Band (White), Statues - Amazon Canada
Amazon.com: DOYO Guitar Hero Controller for PC and PS3, Wireless Guitar for Guitar Hero 3/4/5 and Rock Band 1/2 Games, Guitar Hero Guitar with strap (5 Keys/Black) : Video Games
TYewa98556 USB Wired Game Controller for Microsoft Xbox 360 Fender Rock Band Guitar Hero : Video Games - Amazon.com