Please NoteThis is DC 7406 to USB C connector adapter,DC port is input, USB C port is output, DC input power must be higher than USB C output power. for instance, I power supply of your laptop is 20V 3.16A,and its power is 63.2w,then you need a DC 65W power adapter input to use it. Product FunctionThe DC port is converted a usb c port to quickly power USB type c devices, perfect solution to the problem that the dc power adapter cannot power the type c port. Intelligent ChipDC 7.4mm x 0.6mm to USB Type c male plug, built-in pd intelligent chip, can quickly identify current, provide stability, protecting your smartphone or laptop from damage due to excessive current. Right Angle DesignAdopt 90 degree right angle design, solve limited connectivity between devices, making it easy to insert even in difficult to reach areas and narrow spaces, convenience for you while extending the lifespan. Widely CompatibleSupport 5V/9V/20V voltage operation,max support 65W high power out