There is a port for an exterior power source but its related straight to the 5V line Therefore if you should externally power, we suggest prying open up the situation and cutting the red 5V line through the USB link. https://gregorywiyy852016.ampedpages.com/top-latest-five-qvs-hdmi-ultrahd-8k-48gbps-with-ethernet-female-to-female-gender-changer-urban-news-57587727