This 3 USB Port Mobile Power Supply Circuit Board is designed for efficient and simultaneous charging of up to three devices. Featuring smart auto-detection technology, it identifies connected devices and delivers an optimal output current of 5V/1A or 5V/2A accordingly. The board ensures fast, safe, and stable charging with built-in protections against over-current, short circuits, and over-voltage. Made from high-quality materials, it’s compact and easy to integrate into DIY power bank projects or ready-to-use charging solutions. Ideal for electronics enthusiasts, manufacturers, and businesses seeking a reliable multi-device charging PCB.