This 8BitDo controller is the reason the USB-2-PCE adapter even exists. Super low latency 2.4g wireless USB controller with dedicated turbo buttons. Slightly smaller than the original PCE controller still feels great in your hands.
Some undocumented features also exists:
Run + ⬆️ = XInput Mode Run + ⬅️ = Switch Mode Run + ⬇️ = PCE Mini Mode Select +
⬆️ = D-pad default Select +
⬅️ = D-pad map to Left Analog Select + ➡️ = D-pad map to Right Analog Select + ⬇️ = Top Row Buttons (turbo button mode | 4-button mode) Select + 2️⃣ + 1️⃣ = Toggle turbo 3 diff speeds