Swapna Krishna reports via Engadget: Back in January, the HDMI Forum unveiled its new specifications for the HDMI connector, called HDMI 2.1. Now, that HDMI specification is available to all HDMI 2.0 adopters. It's backwards compatible with all previous HDMI specifications. The focus of HDMI 2.1 is on higher video bandwidth; it supports 48 GB per second with a new backwards-compatible ultra high speed HDMI cable. It also supports faster refresh rates for high video resolution -- 60 Hz for 8K and 120 Hz for 4K. The standard also supports Dynamic HDR and resolutions up to 10K for commercial and specialty use. This new version of the HDMI specification also introduces an enhanced refresh rate that gamers will appreciate. VRR, or Variable Refresh Rate, reduces, or in some cases eliminates, lag for smoother gameplay, while Quick Frame Transport (QFT) reduces latency. Quick Media Switching, or QMS, reduces the amount of blank-screen wait time while switching media. HDMI 2.1 also includes Auto Low Latency Mode (ALLM), which automatically sets the ideal latency for the smoothest viewing experience.