Capture cards.
Everyone thinks to be a great streamer so they will buy capture cards, microphones and professional webcams for streams that no one will watch XDare these like 10 dollar in japan because there are so many people doing it...
last i checked each of these cost like.. 100$ or sumting
Yeah, an Xbox One also does the same thing and you stream it using the Windows 10 Xbox streaming thingElgato Capture Cards. You can also link up to an Android TV, most of them allows you to record whats on HDMI signal, you cant stream it, but its like a cheap Elgato.