UPC: 742521182642 1.Rainbow Spectrum LED: Only plug the 3PIN to motherboard or Molex 4PIN to PC power supply to create dynamic Rainbow Spectrum lighting effects ,no software or adapter needed.* The color version can realize the automatic color lighting effect, but cannot connected to the motherboard or the controller to control the lighting effect. 2.HIGH EFFICIENCY, MUTE-Combination of high efficiency heat dissipation and mute,11 pcs bionic shark fin fan vanes,There is cut back processing on both external and internal of the fan frame to make a large amount of air and improve the heat transfer, Corner breakage design of the fan vanes is to reduce the noise and increase wind pressure. In addition, the fan vanes have been polished, not easy to stick ash. 3.ASEISMATIC DESIGN-Silent noise reduction,That 8 damping silicone pads fixed on both sides of the fan frame is to reduce the noise of the polarization motor vibration. 4.Perfect Cooling Performance:Tuned for high-airflow, large volume cooling, silent operation as an excellent choice for case cooling. 5.Wide Compatibility:The most commonly 120mm size for computer case.Compatible 3-pin connector for mainboard and power supply that also works with 4-pin headers.