- Transform your standard fan into a customizable cooling solution with our USB Fan Controller. Simply plug the USB connector into your device, insert the control into the fan, and adjust the knob to set your desired speed. - Made from durable ABS plastic, this controller features a user-friendly twist operation that allows you to easily increase or decrease the fan speed. Enjoy optimal comfort on hot days with just a simple turn. - Compatible with a variety of fans, this USB controller is perfect for use at your desk, in your dorm room, or while traveling. It provides a refreshing airflow tailored to your needs, making it an essential accessory for those warm summer months. - Operating at a voltage range of 4 to 12V and rated at 5W, this fan controller is efficient and safe to use, ensuring it won’t overload your devices. - Ideal for various scenarios: - Use it at your office desk to create a comfortable working environment. - Take it to your dorm to enhance airflow during study sessions. - Bring it along on trips to stay cool in hotel rooms or campsites. Upgrade your cooling experience with the convenience and efficiency of our USB Fan Controller.