Features: This is a USB to DC5.5x2.1mm female charging adapter cable, with a length of 30cm. It is designed exclusively for charging purpose and does not support data transmission. The cable has a maximum power output of 5V4A, making it capable of fast charging. With a 20AWG wire-gauge, this cable ensures stable and efficient charging performance. The cable is equipped with a USB male connector on one end and a DC5.5x2.1mm female connector on the other end, allowing it to be used with a ranges of devices that require this type of charging adapter, such as usb lights, usb fans, cartoon watches, radiators, 5v mini speaker, usb hubs. Specifications: Material: Plastic Male end: USB Female end: 5.5x2.1mm Length: 30cm/11.8in Wire diameter: 20AWG, 0.5mm², OD=3.5mm Support: up to 5V-voltage,4A-current Package Includes: 1x USB to DC5.5x2.1mm Power Cable note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.