That's because most Windows laptops only have HDMI-out ports, not HDMI-in. A capture card connects to your laptop's USB port and acts as an adapter, receiving the video signal from another computer.

So you'll need a charger for both devices, plus a capture card for the video, right? Not with the new Avermedia Elite Go GC313Pro—multi-device charger, USB hub, and 1080p capture card all in one.