Features: Brand new and high quality 1.When 12V QC3.0 USB or 12V Type C PD input,5.5x2.1mm output is 5V-12V adjustable,your QC3.0USB adapter must with 12V output,if standard USB adapter 5V input,output is 5V,can not adjustable voltage. 2. With this cable, you can connect your power-bank to routers. Thus, when power off, you can use your qc3.0 USB power-bank to supply your routers. 3. When QC3.0 USB input,the output voltage can be adjusted from 5V to 12V,Use this cable, you can supply your car air purifier LED strip light by qc3.0 usb power-bank. 4.For 12V WiFi Routers,Light for Cat, Routers LED Light Camera Fan Toy,switches and other other 5V-12V Device (power Less than 18W ) 5.Press the button voltage to change 0.2V each, adjust to the maximum voltage and then press the button voltage to reduce 0.2V each. When the voltage is set to 12V, the next you use the default 12V, only supports QC3.0 wall or car USB charger or QC3.0 USB power-bank. Specifications: Input Voltage: 12V QC3.0 USB or 12V Type C PD charger Output Voltage: DC5V- 12V(can adjustable voltage) Output Current: 1.5A Output Power: 18W Cable Length: Approx. 100cm Color: Black Input interface: standard USB 2.0 male,type c male Output Interface: 5.5x2.1mm (Inside the positive,outside the negative) Quantity: 1PC (other accessories in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 X QC3.0 USB to 12V 5.5x2.1mm adjustable voltage Cable 1 X Type C to USB Convertor