This is used to convert your output HDMI port into an input so you need to connect it using the USB port and then you can boot Firestick 4K on the laptop instantly. Perhaps to use the FireTV without even using your TV then you should use the HDMI video capture instead. This splitter works as a screen mirroring tool between your TV and your computer which means you cannot directly use this device yet. However, there is an alternative way that you can use to display a Firestick screen on a laptop or PC using HDMI Splitter. In this way, if you connect an output to an output HDMI you won’t be able to see any response from there and it won’t display anything either. Similarly, most laptops and computers have the same output HDMI ports that are used for external monitors. The reason is simple FireTV works like a small computer having an output HDMI itself. This question is quite complicated because if you are asking if you can use Firestick directly using the HDMI port on the laptop then the answer will be no, you can’t.