USB Power Cable to Male Adapter Jack 5.5×2.1mm 5V to 12.6V

From the shop's description

5V DC to 12.6V DC USB power data cable adapter charger plug with LED can be accessed by charging computers, cars, switches, and other equipment Universal replacement USB to DC Transmitter / Power Cable for related devices and batteries Plug & Play: This 5V to 12.6V DC converter is really handy when traveling or outdoors Widely Usage: Super convenient for different kinds of devices and charging batteries USB Input: 5V A male; DC Output: 12.6V; Max current: 0.8A; PLEASE NOTE: The size of the DC Connector is OD: 5.5 mm and ID: 2.5 mm(2.1mm). Safe & Reliable: With a built-in upgraded intelligent IC circuit, our voltage adapter provides your device’s perfect protection from over-current, over-voltage, overload, or short circuit. Longer Transfer Distance: 1M power cord and no loss current, makes long distance transfer free. Specifications: Input voltage: DC 5V Output voltage: DC12.6V Color: Black Length: 1M Features: Transparent USB plug with power indicator light Can be accessed by charging computers, cars, switches and other equipment Reliable and fast data transmission Easy to use and carry.