1.This product is equipped with 8 high-speed rotating fans, so that the heat dissipation is more uniform; It also uses a quiet engine that rejects noise. 2.Simple operation, one key to arbitrarily switch different wind speed and open RGB light effect. It is also equipped with dual USB ports to power other USB devices on the desktop. 3.Compatible with computers of different sizes, the stand is ergonomic and can change its height according to its own needs. Make work more efficient and comfortable. 4.Added a non-slip baffle, more stable and firm when using the computer. 5.Using high-speed impedance power supply line, tensile wear-resistant braided wire does not heat, wear-resistant, long-term power supply is more stable. Specification BrandCOOLCOLD Model F4 ColorBlack&Blue VoltageDC 5V Dimensions 370.8*254.3* 24mm Fan size60.15*8PCS Net weight810g