This is a high quality and reliability USB power adapter specially designed for the Raspberry Pi 4. It can output stable 5V@3A for Pi 4 board to make it demonstrate best performance. Considering the power interface of Raspberry Pi 4 is different the previous, we provide you with a suitable Type-C cable for your convenience. All components of the product are required to pass the strict test and UL certification. Besides, the adapter has over-current protection, safe to use.