These days, if you need to connect two devices via wire, you'll most likely use HDMI. This display protocol supports all sorts of device pairings. It lets you use your iPhone with an external display, ...

When it comes to transmitting audio and video signals from one device to another, HDMI, which is short for High-Definition Multimedia Interface, is arguably the most widely used and reliable solution.

HDMI looks simple from the outside. One plug. One port. A promise that video and audio will “just work.” In real life, HDMI choices affect picture quality, refresh rate, gaming features, cable routing ...