The HDMI port on your motherboard or GPU usually connects to your primary monitor. If you're using a relatively new graphics card and monitor, your HDMI port is probably vacant, considering many ...

I have a Dell U2720Q monitor that accepts HDMI 2.0, DisplayPort 1.4 and USB-C. I use USB-C because the monitor acts as a hub for a range of peripherals (keyboard, mouse, webcam, speakers, etc.etc) and ...