COOLCOLD K40 RGB Laptop Cooler 6-fan Cooling Stand Mute Design with Adjustable Wind Speed Stand Height Colorful Light Effect COOLCOLD K40 RGB Laptop Cooler Colorful LED light, 12 kinds of light effects, bringing cool and immersive gaming experiene 6 cooling fans design, the fan speed up to 2900±10%RPM, superior heat dissipation effect. 3-gear adjustable fan speed, you can adjust it as you like. Mute design, silent fans and high speed motor, not disturb the gaming experience. 7-level adjustable height, you can choose the best viewing angle according to your needs.