The use of high-quality boards and wiring technology can effectively reduce interference and loss during signal transmission, ensure stable transmission of digital signals, and thus achieve smooth playback of high-definition video and audio, and reduce problems such as screen freezes, screen distortion, and audio distortion. It has multiple interfaces, such as HDMI, AV, USB, etc., and is compatible with various display devices and external storage devices, making it convenient for users to connect different devices and meet the needs of different users. At the same time, it can also adapt to different digital signal formats and encoding standards, and has strong versatility. Through reasonable circuit layout and shielding measures, it can effectively resist external electromagnetic interference, while reducing its own electromagnetic radiation to other devices, ensuring that the equipment works stably in a complex electromagnetic environment, and improving the equipment's anti-interf…