Features: Power multiple devices simultaneously with this 4 port (2 USB A + 2 USB C) car chargers featuring double PD45W and QC3.0 fast charging, delivering up to 83W total output for smartphones, tablets, and laptops in 12V/24V vehicles. Engineered with a built in voltmeter for real time electric monitoring, IP65 waterproof rating for weather durability, and dustproof turn covers to maintain port cleanliness during off road adventures or marine use. Ideal for truck drives , boat owners, and frequent travelers requiring stable multi device charging solution during long journeys, fishing trips, or family road trips. Effortlessly charges cams, systems, and passenger devices while driving through hard terrains or sailing in humid coastal conditions, thanks to its shock resistant ABS housing and wide 12 30V input compatibility. Includes a 60cm heavy duty cable with 10A in line fuses for secure installation, automatically detecting connection devices to optimize charging speeds while preventing overheating through intelligent circuit defens technology. Specifications: Component : plastic Size: about 45x74mm/1.77x2.91inch Product name: Modified car chargers Input electric : 12V-24V Opening size: 30mm Output current: 3.1A Interfaces type: +USBx2 Styles: 2 for option Package Includes: 1xCar chargers note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.