NESPi USB to DC Voltage Step Up Converter Cable Power Supply Adapter Cable with DC Jack 5.5 x 2.1mm, USB Boost Cable 5V to 5V/9V/12V,for Speakers and More Devices (5V/9V/12V(3PCS))

USB Input: 5V/2A; DC Output: 5V/9V/12V. Please select the appropriate voltage according to your devices., The size of the DC Connector is OD: 5.5 mm and ID: 2.5 mm(2.1mm). Please check if it fits in the power jack on your devices., Safe & Reliable, with built-in upgraded intelligent IC circuit, our voltage adapter provides your devices perfect protecetion from over-current, over voltage, overload or short circuit., Useful for powering the WiFi router via a power bank or other 5V power source during power outages. Can also be used with other devices that require a 9V/12V power supply., Package including: 5V to 12V Step up Cable x 1, 5V to 9V Step up Cable x 1,5V to 5V Cable x 1,18 months long time warranty, just contact us if you have any issues about the quliaty or other questions, we will take the issue for you via replacement or refund.