A. It helps protect your data by keeping the CPU at a suitable temperature. This CPU fan has efficient heat dissipation and low noise. You can use your computer for extended periods without it overheating. B. With this CPU fan, your computer will stay at a comfortable temperature whether used on your lap or on a desktop. It is made of materials that offer durability. Its design provides good compatibility. C. How to maintain the CPU fan - Avoid placing your computer in a dusty environment. Regularly clean the dust and add lubricant, for example, every six months or a year. It is advisable to wear anti - static gloves when operating. D. Compatible models: LifeBook S6311, S2210, S6510, S6410, E8410, S7110, T4215, T5500, T2050, MCF - S6055AM05B E. Color: Black F. Material: Plastic G. Interface: 3 - pin H. Package contents: - 1 CPU cooling fan - Only the above items are included in the package. I. Precautions: Light and different displays may cause slight differences between the color of the item and the actual object. A measurement error of plus or minus 1 - 3 centimeters may occur.