5.5MMUSB turn power lines, supporting the transposon is 5.5 * 2.1

Product description Charge Your 5V DC Devices From Your Computer Through A USB Port The USB to Type M (5.5mm) Power Cable enables you to power an external 5V DC device, using an available USB port on your desktop or laptop computer. Perfect Solution For Mobile Applications The USB to DC Plug cable is a perfect solution for mobile applications, eliminating the need to pack a wall adapter for charging 5V devices. The CableDeconn Advantage This product eliminates having to carry/store a power adapter, by enabling you to connect devices from a USB port to a DC plug. Convert a USB A port into a type M power connector, for powering external drives or mobile peripherals through an available USB port on your desktop/laptop One USB A male connector One type M barrel power connector Molded connectors with strain relief