DisplayPort 1.4a is a digital display interface standard that supports high-resolution video and audio transmission. It can handle resolutions up to 8K at 60Hz and 4K at 120Hz, making it ideal for high-performance monitors and gaming setups. This version also includes support for HDR (High Dynamic Range) content, enhancing color and contrast for a better viewing experience. Additionally, DisplayPort 1.4a features Multi-Stream Transport (MST), allowing multiple displays to be connected through a single port. It also supports Adaptive Sync, which helps reduce screen tearing in games. Overall, it provides a versatile solution for modern display needs.