AeroCool Fan Cooling for PC, DS 140mm (Blue) Noise and shock reduction fan frame incorporating four Silencer Blocks and anti-vibration rubber pads on each mounting holes Fluid Dynamic Bearing (FDB) delivers longer life span and higher precision rotation and anti-shock function Low speed 7V Voltage Reduction Cable included for ultra-low speed with unrecognizable noise Beautifully finished Dual Color and Dual Material Fan with four color combinations and LEDs The world's first dual-layered fan blades combination of plastic and rubber fan blades to absorb Wind noise Four Anti-vibration screws are included for easier installation Power cables are black sleeved with both 3pin and Molex 4pin connectors 12V DC 140mm Fan