Since the advent of 2002, the HDMI interface has been the mainstream interface standard for display products. Both the 1.0 and the 2.0 versions have brought about extraordinary changes. In a sense, only the output/input ports The evolution can support the transmission of higher-definition video and audio signal data. It is undoubted that the most direct high-definition video experience can be obtained from the three sources of wire, playback equipment and display equipment. HDMI2.1 standard released Debuted in CES2017 HDMI2.1 interface standards, finally officially launched, the so-called soldiers and horses did not move, feed first. The release of the HDMI 2.1 standard naturally addresses the advent of 8K hardware devices. The HDMI 2.1 standard provides up to 48Gbps of bandwidth, allowing you to watch 4K 120Hz and 8K 60Hz video content, and 12-bit color depth for TVs and computers. For light fixtures, this will be good news (of course your TV or graphics card has an HDMI 2.1 standard interface). HDMI cable interface Unsurprisingly, the HDMI 2.1 interface is downwardly compatible with cables with versions under 2.1, so the 2.0 cable can also be used normally, but it should be noted that if you want to experience high transmission rates of 48Gbps, you must use HDMI 2.1 support The standard cable works. HDMI 2.1 will continue to correspond to the original HDMI A, C and D plug designs. At the same time, this standard port and wire also support the new Dynamic HDR technology. Compared with the current "static" HDR, "dynamic" HDR can further enhance the contrast with the light and dark levels in response to the light and dark distribution of each frame. HDMI 2.1 supports new eARC technology and can return Object-based sound effects such as Dolby Atmos over existing ARC (Audio Return Channel). Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.