Specification:    Brand new    Material: Electrical components    Color: Black    Size: as shown in picture    Input Voltage: DC 5V    Output Voltage: DC 9V / DC 12V (optional)    Max Input Current: 2.1A    Max Output Current: 800mA (For 800mA or less application is recommended)    Cable Length: approx. 1M/3Ft    Input Interface: USB A Type Male    Output Interface: 2.1x5.5mm PlugFeature:    With this cable, you can connect your power bank to router. Thus, when power cut, you can use your power bank to supply your router.    Use this cable, you can supply your car Air Purifier by power bank.    Fine workmanship and good performance.    Stable and reliable.    Easy to use.    Long service lifePackage included:    1 x Step-Up Module Converter Adapter Cable