The HDMI was proposed in 2002, has now developed to the HDMI 2.1 standard. With the developed of the industry, the HDMI2.1 standard has been able to support 4K 120hZ and 8K 60Hz, support high dynamic range imaging(HDR), and can be optimized for scenes or frames, backward compatible with HDMI 2.0, HDMI 1.4. The main thing is that it transmits video and audio at the same time.

Nowadays, many monitors speakers can transmit images and sounds at the same time with an HDMI cable, it is also a major advantage of HDMI. Because of this, HDMI has become the most normal interface for monitors. There are several types of HDMI on the physical interface, there are mainly standard HDMI, MINI HDMI and Micro HDMI. For long-distance HDMI cables, if the cables are hard, try to use them on devise with standard HDMI interface to get a stable connection. MINI HDMI and Micro HDMI are more suitable for the use of small devices.

In 2018, the HDMI Association proposed the HDMI 2.1 standard. At present, the bandwidth of HDMI 2.0b is 18Gbps, and HDMI 2.1 is increased to 48Gbps. It can fully support lossless video with resolutions and refresh rates such as 4K/120Hz, 8K/60Hz, and 10K, and at the same time support high dynamic video HDR technology, this new standard uses a new ultra-high-speed data cable(Ultra High Speed HDMI Cable).