Portable WiFi device PCBA assembly, focusing on miniaturization, low power consumption and high stability. Integrating WiFi modules, power management chips, and signal amplification circuits, it provides convenient wireless network access for users on business trips, travels, and outdoor activities. We adopt compact circuit layout and high-efficiency power supply design, ensuring the portability and long standby time of the device, and supporting multi-device concurrent connection, meeting the mobile network needs of modern people.