Universally USB Extension: This 300cm USB2.0 male to female extension cable provides convenient power supply for various USB powered devices like LED lights, USB fans, blowers and more. Charging Only Functionality: Designed exclusively for power , this cable supports 5V3A charging but does not transmit data or work with peripherals like keyboards, mouse, or card readers. Wide Device Compatibility: Perfectly compatibles USB powered gadgets such as car LED lights, phone chargers, and cameras, offering reliabled extended distance power supply. Durability Construction: Built with durability and metal, this USB extension cable ensures stable power transmission and long lasting for daily use. Simple to use: Easily connection to any standard USB port without additional driver or installation, making it ideal for students, and anyone needing USB power extension.