There was a time when HDMI 2.1 ports were extremely rare, but even today, the ones on most gaming monitors aren’t delivering the features they’re supposed to. An HDMI 2.1 port should support not just 48 Gbps bandwidth, but also features such as eARC, ALLM, dynamic HDR, and more. In reality, manufacturers can implement just one of these features and market “HDMI 2.1” to move units.