Are you sure you're not thinking of DP++ ? https://www.kensington.com/news/docking-connectivity-blog/difference-between-dp-and-dual-mode-display-video-ports/# h

Are you sure you're not thinking of DP++ ? https://www.kensington.com/news/docking-connectivity-blog/difference-between-dp-and-dual-mode-display-video-ports/# https://www.kensington.com/news/docking-connectivity-blog/di... Its a displayport connector, but the port itself can become an HDMI or DVI port purely with a passive adapter.