Features: 100% brand new and high quality. Multiple protection functions: input overvoltage protection, undervoltage protection; output overcurrent, overvoltage, undervoltage and short circuit protection; reverse polarity protection; internal chip high temperature protection. USB1 outputs 5V 2.4A and supports DCPBC1.2/AppleDivider3/Samsung 1.2V fast charging protocols. And it is fully compatible with various tablets. The output voltage of USB2 has three output schemes: 5V 3.4A / 9V 2.5A / 12V 2A. The package includes 2 fast charging ports: DCPBC1.2, AppleDivider3/Samsung 1.2V. Aluminum alloy, high and low temperature resistant ABS, flame retardant and environmentally friendly materials with a very high safety factor. Digital display voltmeter, the battery status is clear at a glance. The product comes with fixed parts, clamps and screws, for more convenient and beautiful installation. The socket can be used to power external devices of the vehicle and also to charge mobile phones,