How to Set Up the 8BitDo USB Wireless Adapter 2

By 8BitMods - Retro and modern console games and accessories | Published: 2026-10-17

Category: How-to Guides

Learn to connect the 8BitDo USB Wireless Adapter 2 to Switch, Steam Deck, and PC. Step-by-step setup with pairing tips and common pitfalls.

Quick Answer

Plug the 8BitDo USB Wireless Adapter 2 into your Switch dock, Steam Deck, or PC. Put your controller into pairing mode, then press the sync button on the adapter. The LED will turn solid when connected. No drivers needed for most systems.

What You Need

The 8BitDo USB Wireless Adapter 2 works with Nintendo Switch (docked or in a USB-C OTG adapter), Steam Deck, Windows PC, macOS, and Raspberry Pi. You'll need a compatible wireless controller—most Bluetooth controllers work, including Switch Pro, PS4/PS5, Xbox, and 8BitDo gamepads. The adapter supports up to four controllers simultaneously, but each requires its own adapter.

Common Pairing Mistakes

If the controller doesn't connect, the most common issue is not putting the controller into pairing mode before pressing the adapter's sync button. For Switch Pro controllers, hold the sync button on the top of the controller until the LEDs flash. For 8BitDo controllers, hold Start + a face button (A for Switch mode, X for XInput, Y for macOS). Also ensure the adapter is plugged into a USB port that supplies power—some USB hubs may not provide enough current.

Setup Steps

Plug in the Adapter: Insert the 8BitDo USB Wireless Adapter 2 into a USB port on your Switch dock, Steam Deck (via USB-C adapter), or PC. Wait for the LED to blink slowly, indicating it's ready to pair. Common mistake: Using a low-power USB hub. Plug directly into the device or a powered hub.
Put Your Controller in Pairing Mode: Activate pairing mode on your controller. For Switch Pro, hold the sync button on top until LEDs flash. For PS4/PS5, hold Share + PS button. For Xbox, hold the pairing button. For 8BitDo controllers, hold Start + the mode button (A for Switch, X for PC, Y for macOS). Checkpoint: If the controller doesn't enter pairing mode, consult its manual—different models use different button combos.
Press the Sync Button on the Adapter: Press the sync button on the side of the adapter. The LED will blink rapidly while searching. Once the controller connects, the LED becomes solid. If pairing fails, turn off the controller and repeat steps 2 and 3 within 10 seconds.
Test the Connection: Open a game or system menu and move the joystick or press buttons. If the controller responds, you're set. On Switch, you may need to reorder controllers in System Settings > Controllers and Sensors. Common issue: The controller works but buttons are swapped—this means the controller is in the wrong mode. Re-pair using the correct mode for your platform.

About the 8BitDo USB Wireless Adapter 2

8BitDo USB Wireless Adapter 2 for Switch / Steam Deck / PC - Black: The 8BitDo USB Wireless Adapter 2 lets you use a variety of wireless controllers to play games on Nintendo Switch, Windows PC, macOS, Raspberry Pis and more. It features advanced Bluetooth connectivity for smooth, cable-free gaming. This means you can keep your favorite controller and use it across multiple devices without buying separate adapters for each platform.