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 ...

Whether your PC is old or new, here's what all those ports do. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Add us as a preferred source on ...

Some (many?) HDMI cables can also carry Ethernet over HDMI. The main use seems to be to provide internet connection to a smart TV from a cable modem box. Currently I have an ethernet-USB adaptor ...