Adjustable 3-12V Voltage Adaptor Charger USB AC/DC Power Supply Adapte Universal
[AC/DC Power Adapter]Input: AC 100-240v 50 60hz. Max current: 2A (compatible with 200mA / 300mA / 500mA / 600mA / 800mA / 1000mA ). Why is 30W ?. Adapter is 24W max + USB 6W. When using USB alone, it is 5V 2.1A max.