HDMI 2.1 has a few extra tricks up its sleeve, including limited power delivery (uncommon) and the ability to act as an Ethernet adapter (with the right cable). It can also use FreeSync or HDMI ...
It means the end of multiple cable connections of old, seeing one HDMI cable to rule all. ARC is especially useful when pairing one of the best soundbars to a TV, for example, as you can adjust ...