[14cm Dual Fan Design]: The dual fan structure significantly enhances air flow efficiency, covering a area to provide a uniform and powerful cooling experience for your laptop. [5-Level Height Adjustment]: The 5-level height adjustment design accommodates different usage scenarios, allowing you to easily set the optimal posture for gaming or working. [Stepless Fan Speed Adjustment]: With 0-100 levels of stepless fan speed adjustment, you can flexibly adjust the speed according to different needs, keeping your laptop cool and running efficiently. [RGB Lighting]: Offering 10 lighting effects, it provides users with great flexibility and space to create an impressive gaming atmosphere. Users can adjust according to their preferences and gaming context, enhancing the visual experience and immersion through lighting changes. [Silent Operation]: In full-speed mode, noise levels are only 42dB, allowing the fan to operate efficiently while remaining quiet, without disrupting your gaming experience. Product Parameters Model: V21 (RGB) Number of fans: 2 PCS Fan size: 14CM (2 pcs) Maximum fan speed: 1500±10% RPM Product size: About 372mmx261mmx53.6mm Product weight: About 0.85KG (product + charging cable) Angle adjustment: 5 levels Power interface: Type-C input Power cable: C-C data cable 1M It is recommended to use a 9V2A adapter or above for better heat dissipation performance The above data come from the laboratory. Due to changes in objective conditions, data . The actual use shall prevail. Color: Black Material: ABS + Metal Package Contents: 1 * laptop cooler 1 * charging cable 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.