?Ergonomic, Sleek & Minimalist Design? Innovative and exclusive space-saving design of car usb charger increases the efficiency while upturning the aesthetic value, ergonomic, and compact size allows easy plugging and unplugging of device. ?Premium Quality Flame-Resistant PC Material?- UL/CE/RCM/PSE certified exclusive circuit design and premium quality high temperature resistant, surge-protected and fireproof PC material that guarantees our USB Car Charger charging security, fire prevention and overload protection which keeps your devices well protected. ?Compatible Laptop Model?surface book 3 ;surface book 2; surface book (1st gen);surface laptop 4, surface laptop 3, surface Laptop 2, surface laptop (1st gen), surface pro x, surface pro 7, surface pro 6, surface pro (5th gen), surface pro 4, surface pro 3, surface go 2, surface go (1st gen). ?Output?15V 8A Max , Compatible for all 15V surface laptop , 15V 2.58A or 15V 4A and 15V 6.33A. ?USB QC3.0 Fast Charging?USB Port with Quick Charge 3.0 is faster than common chargers. Give you a high speed.suitable for many electronic devices. Charge Smartphone, Galaxy ,Tablet, Power bank, Humidifier, Driving recorder while charging your laptop. ?FOR ALL TYPE CAR? 12V-24V Suitable for Cars Trucks RV SUV BUS This power inverter for laptop can be also used in boat. Open you new 12 volt power world.