To connect your controller, ensure it's in pairing mode. Navigate to the Steam Link settings, select 'Controllers,' and then choose 'Add a Controller.' Follow the prompts to connect your device.

Yes, you can play local multiplayer games using Steam Link. Ensure all players are connected to the same network and that their controllers are recognized by your Steam Link device.

For the best performance, use a wired connection for your gaming PC and ensure minimal distance between the router and Steam Link device. Close bandwidth-heavy applications while gaming.

To adjust streaming quality settings, navigate to the 'Settings' menu on your Steam Link. Select 'Streaming' and then choose your desired quality level based on your network speed and performance preferences.

To add non-Steam games, follow these steps: 1. Launch Steam on your PC. 2. Go to 'Library' and click 'Add a Game' at the bottom left. 3. Select 'Add a Non-Steam Game.' 4. Find and select the game from the list, then click 'Add Selected Programs.' This makes the game accessible via Steam Link.