LED Sending Cards/Boxes are essential components of LED control systems, responsible for transmitting image and video signals from a computer to an LED display. These devices are integral for both synchronous and asynchronous LED displays, enabling seamless video, graphics, and text display in various applications, including large screens for advertising, events, and public information.

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LED Sending Cards/Boxes are used in conjunction with receiving cards to form the core of an LED display control system. Synchronous LED control systems are designed to deliver real-time, high-resolution content, ensuring accurate image updates for high-end indoor and outdoor displays. These systems are crucial for providing the dynamic content experience on full-color LED screens, enabling smooth, high-quality video and multimedia displays. As technology evolves, modern sending cards have become more integrated, offering multi-functional devices that combine video processing and signal transmission capabilities.