They are wired controllers described as plug-and-play, with no wireless technology and typically no additional drivers required.
They typically include dual analog joysticks, a D-pad, pressure-sensitive action buttons and triggers, plus the standard GameCube face buttons in the classic layout.
Listings show controllers with either 9 or 10 buttons, so the typical range across these results is 9–10 buttons.
Some listings specify a 55in cable, while others mention a 6-foot wired cable.
Listings advertise precision features such as fully analog, pressure‑sensitive action buttons and triggers, enhanced joysticks, and responsive D‑pads for nuanced control.