1,Deep Heat Dissipation: The five fan blades are distributed and arranged to fully cover the heating part of the notebook with strong wind and deep heat dissipation. 2,Quiet Fan: Quiet fan design, no other noise during operation, does not affect work during the day, and does not disturb sleep at night. 3,Dual USB Ports: The dual USB ports are designed with one in and one out, which can supply power to devices such as mobile phones. The wind speed can be adjusted freely to adapt to different degrees of cooling needs. 4,Telescopic Baffle: The design of the telescopic baffle effectively prevents the notebook from slipping and ensures the stability of the display. 5,Universal Size: 5PCS fan, strong wind, no worries about notebook size, universal for notebooks under 17 in. 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. Sold by-Dadangjia