AC Input: 100-240V 50-60Hz; DC Output: 5V (Silver plated Micro jack) Power supply adapter charger works for Raspberry Pi3/ Pi 2 Model B/ Raspberry Pi Zero/ Raspberry Pi Model A A+ Model B B+ INTELLIGENT CONTROL: Built-in security chip device, safety over-current protection function, to provide comprehensive protection for users and equipment. SAFETY FEATURES: OVP: Over Voltage output Protection, OCP: Over Current output Protection, SCP: Short Circuit output Protection and more [Friendly Customer Support]: If you have any questions or concerns, please don't hesitate to reach out. Our dedicated professional team is here to provide you with friendly and efficient customer service.