The 2 power in car 90w universal laptop charger comes with 8 tips that cover over 95 of all laptops amp notebooks on the market it is a small adapter with snap on tips that automatically sense and select the correct voltage for your laptop so no need to worry about damaging your laptop you can also charge usb chargeable devices such as tablet pc39s or smartphones via a single usb socket features includes 12v dc car plug not suitable for 24v trucks input voltagepower