NDI (Network Device Interface) is a technology developed by NewTek that enables computers and other devices to send and receive high-quality, low-latency video and audio over standard local area networks (LANs). This allows multiple video sources, such as cameras and computers, to be easily connected and shared in real time without the need for specialized cables or hardware. NDI is widely used in live video production, streaming, and broadcasting environments to simplify workflows and enhance collaboration.