My very basic setup. Pi1 Model B. Bought Wii Classic Adapter to reuse my old Wii controllers. Would recommend. Seems it would support the Snes Classic controllers. : r/RetroPie
The Best RetroPie Controllers - Top 10 (2023) - Howchoo
Best Retropie Controller | Why I love the Wii U Pro Controller - YouTube
Amazon.com: JoFong USB Game Controller, Plug and Play Wired Video Gamepad Joystick for NES Games, suily PC, Raspberry Pi, Windows PC Linux RetroPie NES Emulator - USB Interface 2 Pack : Video Games
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Retro-Bit Legacy 16 Wireless 2.4GHz Controller for SNES, Switch, PC, M – Gametronex.com
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Wii Games Compatible Classic Controller | Nintendo Wii Classic Controller Pro White - Gamepads - Aliexpress
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Anyone try hooking up a Wii to USB adapter to their pi and using a Wii controller for retropie? : r/RetroPie
Wii Classic Controller Connected Directly to I2C GPIOs on RP2 - RetroPie Forum
Wii Classic Controller Connected Directly to I2C GPIOs on RP2 - RetroPie Forum
Retro Classic Controller (Controller Pro U) Exhibition for Wii and Wii U Interworks - YouTube
Wii classic controller doesn't work properly. Any idea why? : r/miniSNES
Nintendo Wii Classic controller Gamepad White Authentic RVL-005 | eBay
Classic Controller Pro (Black) | Console Games | Retrogame Tycoon -
Amazon.com: iNNEXT [Bundle USB Version] 2 Pack USB Classic Controller, PC N64 & SNES Controller Joystick for Windows PC MAC Linux Raspberry Pi Project 64 Retropie OpenEmu Emulator(Plug & Play)(Grey) : Video
2.4 GHz Wireless Controller for SNES Classic Edition&NES Classic Edition,LUXMO Wireless SNES USB Classic Controller Gamepad for Windows Laptop PC Mac Raspberry PI System(2 Pack) - Walmart.com
Finished project, want to add NES controller ports - RetroPie Forum
Raspberry Pi 4 Mini Gaming Console Bundled With The Ultimate 128 Retropie Collection and 2 Controllers - 22,000+ Games! - RetroMini Store
For Snes Usb Gaming Controller Classic Nintendo Retro Classic Controller Pc/mac/raspberry Pi Retropi - Buy Snes Usb,Snes,Snes Controller Product on Alibaba.com