Description: 【 Speed Technology】: Experience fan speed adjustments with our advanced usb fan speed controller, allowing you to easily set the desired from quiet low speeds to high efficiency cooling, catering to various scenarios 【Double USB Output Design】: Equipped with both Type C and USB A ports, this usb fan governor is suitable for the latest laptops, , smartphones, and more, enhancing convenience and versatility for users 【Powerful 5W Output Support】: The usb fan governor is capable of delivering up to 5W power output, ensuring full speed fan operation for sturdy cooling performance. With size 5.2 cmx4 cm/2.05 inchx1.57 inch 【Compact and Portable】: Designed to be small and lightweight, this shower usb bathtub speed regulator is easy to carry without taking up much space, making it an ideal companion for home use, office settings, or travel 【Wide Application Range】: This small usb regulator module is versatile in its use across various devices such as desktop fans, laptop coolers, smartphone coolers, USB , and more Specification: Material: Plastic Size Chart: 5.2 cmx4 cm/2.05 inchx1.57 inch Input socket: USB Output: 2.5-8V 1A Input: 5V 4A Package Includes: 1 5W Speed Controller  Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.