Compact and versatile, this USB 5V adjustable timer poweroff control cable offers a simple and reliable way to manage power supply for your USBpowered devices. Designed for convenience and ease of use, it is ideal for various applications where automated power control is required. Key Features: Small and portable design, easy to carry and quick to set up anywhere you need it Compatible with a wide range of devices such as USB fans, blowers, USB water pumps, USB lights, fish tanks, and data cables Supports 5V 2A power, ensuring stable performance for most USBpowered equipment Plugandplay functionality with a total cable length of 140 cm for flexible placement Adjustable countdown timer ranging from 5 minutes to 24 hours and 55 minutes, allowing precise poweroff control Dedicated to power control only (no data transmission capability) Practical Use Scenarios: 1. Automatically turn off a USB aquarium pump or light after a set time to save energy and improve convenience. 2. Control a USB desk fan to operate only during your work hours, preventing unnecessary power consumption. 3. Schedule a USB light to shut off during nighttime or when no longer needed, providing a hands solution. Whether for home, office, or hobby use, this adjustable USB timer cable offers a smart and efficient way to control your devices, ensuring both convenience and energy savings.