[ ETL Control No.4000850] Rocketek&reg; 90W Mini Universal Laptop Car DC Adaptor with 2 port/4.8A integrated USB Car Charger 100% automatic, no fiddly switch, just plug and go. LCD display on DC cable showing working voltage, visual and reliable. 8 tips for optional, compatible with different brands of laptop and notebook. Supply power for laptop, notebook, iphone, ipad, Tablet PC, PSP, Mp4 and Other related USB devices everywhere. 24-month warranty and friendly customer service. Multi protections: short circuit, over current, over voltage, over Temerature protections.