Effective cooling: Reduces temperature by about 20 degrees Celsius for optimal performance.Quick cooling: Fan speed of 1800 rpm ensures fast and efficient heat dissipation.Silent operation: Noise level of only 18 decibels for completely quiet heat dissipation.Stable installation: Rubber shock-absorbing feet alleviate resonance and ensure stable mounting.Energy-efficient: Ultra-low energy consumption for maximum heat dissipation without high power usage. Introducing our cooling case fan, the perfect solution to keep your computer running cool and efficiently. With its exceptional cooling effect, it effectively reduces the temperature by about 20 degrees Celsius, ensuring optimal performance even during intense usage. The fan speed of approximately 1800 rpm allows for quick and efficient cooling, preventing any potential overheating issues.One of the standout features of our cooling case fan is its silent heat dissipation capability. With a noise level of only about 18 decibels, it achieves completely quiet heat dissipation, allowing you to work or play without any distracting background noise. Say goodbye to annoying fan sounds and hello to a peaceful computing experience.We understand the importance of stability when it comes to installing a case fan. That's why we have incorporated environmentally friendly rubber shock-absorbing feet into our design. These feet alleviate resonance and ensure a stable installation, so you can have peace of mind knowing that your fan will stay securely in place.In addition to its impressive performance, our cooling case fan boasts low energy consumption. With ultra-low energy consumption, it achieves the best heat dissipation effect while minimizing power usage. This not only helps reduce your electricity charge but also contributes to a greener environment. Item Name: Cooling Case Fan Material: pbt Speed: 1800Interface: USB (5V)Working Decibel: about 18 DecibelsAir Volume: 56cfmFeatures: Temperature Reduction, USB Power, Compact Size Details: Single Layer, L: 12cm/4.72", W: 12cm/4.72", H: 5cm/1.97" (Approx.)Dual Layer, L: 24cm/9.45", W: 12cm/4.72", H: 4cm/1.57" (Approx.) Notes: 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. Package Includes: 1 x Cooling Case Fan