HDMI 2.0 is a version of the High-Definition Multimedia Interface that supports higher video resolutions and refresh rates compared to its predecessor, HDMI 1.4. It can transmit 4K video at 60 frames per second, making it ideal for modern televisions and gaming consoles. Additionally, it supports up to 32 audio channels, enhancing the sound experience for users. This version also introduces features like Dynamic HDR, which allows for improved contrast and color accuracy, and Audio Return Channel (ARC), enabling audio to be sent back from the TV to an audio system. Overall, HDMI 2.0 enhances both video and audio quality for a better entertainment experience.