Characteristics and Interoperability Laptop Cooler COOLCOLD K40 RGB with 6 Fans and a Cooling Stand Adjustable Wind Speed Stand Height and Mute Design Vibrant Light Effect RGB K40 Laptop Cooler by COOLCOLD Luminous LED lights with twelve different types of light effects create a cool and immersive gaming experience. With six cooling fans and a maximum speed of 2900±10% RPM, the design provides excellent heat dissipation. The fan speed has three gears that you can adjust to your preference. Silent fans, a fast motor, and a silent design ensure that the gaming experience is uninterrupted. With a height that is seven levels adjustable, you can select the ideal viewing angle for your needs.