Features: Adjustable timing function, achieving controllable management: 1-30 minutes countdown timing line, with power switching button and time adjustment button. Supports 5V-20V 2A input, and the output voltages is equal to the input voltages. Suitable for professional home users and office environments: Perfect for offices, studios, or home environments, it can automatically disconnect lighting fixtures, fan, and other devices when not in use to help save energy, and does not support data transmission. User friendly interfaces, simplifying daily device control: easy to set through simple buttons or knobs, easy to use. Compact design, 50cm line length, visible everywhere: With a small and lightweight structure, it can be easily placed on a desk, suitable for fish bowl, LED lights, fans, kitchens, workstations or electronic devices in small spaces, making it a practical tool for daily device management. Timed shutdown function, extending device usage: By cutting off the power at a preset time, unnecessary wear and tear on electronic devices can be reduced, thereby extending their use and lowering electricity costs. Specifications: Component: plastic Length: approx. 50cm/19.6inch Interfaces: USB male input, USB female output Time: 1-30 minutes USB timing line for fish tanks, LED light and more Package Includes: 1Pc USB Female to Male Timing Cable note: Other accessories demoed in the pictures is not included. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.