The HDMI Forum has just announced a new amendment to its HDMI 2.1a standard. It adds support for HDMI Cable Power, which will allow active cables to draw power directly from the connector without needing a separate power cable.
https://www.techspot.com/news/94850-hdmi-cable-power-removes-need-separate-power-connector.html?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/news/94850-hdmi-cable-power-removes-need-separate-power-connector.html?utm_source=dlvr.it&utm_medium=blogger