Newhope HDMI Capture Card for Streaming, Full HD 1080P 60FPS Capture USB 3.0 Game Audio Video Capture Card,for Streaming Camera/Xbox/PS4/PS5/Switch/PC

USB attached Chinese things. It's a bit over $20 but I got one of these and it works for my needs (I'm not a Nintendo users). https://www.amazon.com/Newhope-Capture-Streaming-Camera-Switch/dp/B0F3YZT5YG/ You need to plug it in between the device and the TV for it to work. If it's not plugged into the TV/monitor, the device won't see a connection.