US Adapter, Input Voltage: AC 100-240V, 50-60Hz (Worldwide AC Input), making it suitable for different countries and regions. Output: 5V 1A/1000mA Max (Also Compatible with 650mA or lower device) Connector Size: barrel type, fits for both 5.5mm x 2.5mm and 5.5mm x 2.1mm plug ,Wire Length:Approx. 3.3ft / 100cm I/C Chip Technology To Protect Your Device: Over Voltage Protection, Over Heat Protection,Over Current Protection