The micro-HDMI, or Type-D, looks like a tiny micro-USB ... You can also use the versatile USB-C or MiniDisplayPort to send HDMI data using an adapter. There’s a double-sized Type-B port too ...
The most widely used adapter is the 5-pin Micro-USB-to-HDMI adapter. Initially, these required a separate power source to operate, but the current MHL standard allows for a passive converter ...