Experience seamless control with our advanced fan speed controller featuring stepless speed adjustment. Effortlessly switch from whisper-quiet to high-efficiency cooling. Dual USB outputs (Type-C and USB-A) ensure compatibility with laptops, tablets, and smartphones. Compact and lightweight, it's perfect for home, office, or travel. Ideal for desktop fans, laptop cooling, and USB-powered devices. Specifications: Shell Material: ABS Input: 5V2A Maximum Power: 5W Use: USB plug-in, data cable plug-in (note: data cable not included) Output: 5-9V 1A Rated Power: 3W Input Jack: USB/Type-C Additional Information: Compatible with USB port-equipped power strips Color: Black Material: plastic Package Contents: 1 Speed Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.