Usage Tips:[Input & Output] Input: DC female connector,15V-20.5V. Output: type-c male connector, PD 5V/9V 2A,20V 7A. NOTE: INPUT MUST BE OUTPUT, OUTPUT DEVICES POWER less than equal 140W. [Note] Please do not charge the laptop which above 140W, and your power brick must be the laptop power, otherwise it will not work. For example, your DC power brick is 90W, but your laptop is 90W or 100W or above, it will not work. [Built-in Chip & Wide Compatibility] DC7955 to USB Type C adapter built-in PD automatic identification induction chip, It can output 5V/9V/20V.Type-C equipment can be powered or through standard DC plug/adapter, which is suitable for all kinds of small chargers, mobile phones,laptop, etc. [PD USB C Adapter] It can convert convert the DC 7.9mm x 0.9mm plug of the PD power supply to a USB Type C plug, perfect solution to the problem that the dc power adapter cannot power the devices with type c jack. Note: DC input power must be higher than USB C output power. [Convenient to Carry] DC 7.9mm x 0.9mm female (7.9mm x 5.5mm) input to USB Type C male power charging adapter, allows you to the trouble of heavy chargers/power bricks and carry it in your backpack on your office/studio/travel. Colour:Black Material:Plastic Package Contents: 1 * DC to Type C Power Charging Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.