DisplayPort

DisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA) to connect a host device to a monitor or display. It transmits video and audio signals and supports data transfer for multi-monitor configurations, docking stations, and other high-bandwidth display applications.

DisplayPort uses multiple data lanes to carry uncompressed video and audio at high resolutions and refresh rates. It supports Multi-Stream Transport (MST), enabling a single output to drive multiple displays via daisy-chain or an MST hub. It also includes an auxiliary channel for device communication and supports adaptive synchronization with compatible GPUs.

Connectors come in a full-size 20-pin DisplayPort and a smaller Mini DisplayPort variant. DisplayPort++ (Dual-Mode) outputs can drive HDMI or DVI displays with passive adapters. On many laptops and desktops, DP signals are delivered over USB-C through the DisplayPort Alternate Mode, enabling connection via USB-C ports with adapters or docks. Cable selection affects achievable bandwidth and reliability.

Version history includes DP 1.0 through DP 1.4, which added higher bandwidth, HDR, and Display Stream Compression. DisplayPort 2.0 introduced Ultra-High Bit Rate up to about 80 Gbps, enabling 8K at 60 Hz or multiple 4K streams; DP 2.1 offers refinements and improved efficiency while maintaining compatibility with earlier versions.

Usage: DisplayPort is widely used in computers, graphics cards, professional displays, and docking stations. It is valued for high bandwidth, support for high resolutions and refresh rates, MST for multi-monitor setups, and its ability to carry audio and other data streams alongside video.