Description: Synchronous rectification, the conversion rate is 96% or more, very low heat. Auto protection: Over voltage, over current, over temperature, short circuit. It can be and can work in normal condition when restored. Long term stable and reliable quality. Super-thin, small size, high efficiency, easy installation and use. Input voltage: DC8-20V, (12V changes to 5V). Specification: Color: Black Material: plastic Red wire: Positive(+) Black Wire: Negative(-) Interface Type: Mini straight head Line length: 3.5 meters Voltage input: 12V Output: 5V 2A MAX Package Includes: 1 Piece Mini USB Power Step Down Cable Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you