Features 1、Efficient Charging: Adopting DC 24V 19V 12V to 5V 3A voltage buck design, it can quickly charge mobile phones and electronic devices, providing an efficient and reliable charging experience. 2、Dual 2 USB Ports: Equipped with 2 USB ports, supporting a maximum fast charging output of 2.4A, it can charge two devices simultaneously, making it convenient to carry and use. 3、Multiple Protection: Built in multiple protection mechanisms, including overcurrent protection, overvoltage protection, overheating protection, etc., ensure the safety and reliability of the charging process, and provide effective protection for your device. 4、Wide Application: Suitable for various transportation vehicles such as cars, trucks, ships, electric vehicles, etc., providing convenient charging solutions for your devices. 5、Premium Materials: Made of excellent materials, durable and resistant to oxidation, ensuring a long service life and reliable stability of the product. Specification Item Type: DC Buck Module Material: ABS Rated Current: 3A Conversion Efficiency: 88%~93%, excluding losses from reverse protection diodes. Supports DCP Protocol: For BC1.2, for iOS X 2.4A. Protection: Input reverse protection, input overvoltage and undervoltage protection, input overcurrent protection, output overcurrent and short circuit protection, whole machine over temperature protection. Input Interface: DC 5.5/2.1, 5.5mm outer diameter, 2.1mm inner diameter. Product Size: Approx. 51.4 x 33 x 9.3mm / 2.02 x 1.3 x 0.37in Package List 1 x DC Buck Module