Common options include handheld attachments that hold Joy‑Con controllers and USB adapters that let legacy controllers (for example, GameCube controllers) connect to the Switch.
These adapters use USB connections (typically USB‑A) and are designed to plug into the Switch dock or a computer via USB.
They list compatibility with Nintendo Switch (including the Switch OLED model), Nintendo Wii U, and personal computers (PC).
The adapter supports up to four GameCube controllers connected at once.
They advertise plug‑and‑play use with no drivers needed—simply connect the adapter via USB or plug it into the Switch dock or a computer.
