Feature:1. Equipped with water pressure bearings, PC cooling fan's life is up to 50000 hours.2. The speed is 1200 rpm, the noise is about 19db(A) and the noise is small, also, the silent fan uses quiet for fast heat dissipation.3. LED streamer light colorful 12cm chassis cooling fan keeps stylish appearance with good quality.4. Works as a DC fan, chassis fan can keeps more obvious noise reduction effect.5. Large size fan blades generate powerful air volume and extend the service life of the computer case.Specification:Item Type: Chassis fanProduct Material: ABSPower Interface: Small 3PIN + large 4PFan Life: 50000 hoursFan Size: Approx. 120 x 120 x 25mm / 4.7 x 4.7 x 1inBearing: Water pressure bearingLine: 3 linesProduct Type: DC fanTermination Method: UnplugAir Volume: 29CFM MinNoise: 19db(A)TDP: 4WSpeed: 1200 rpmAvailable Colors: Blue light / red light / green light / white light (optional)Hole Distance: Approx. 105mm / 4.1in.Package List:1 x Chassis Fan1 x Installation Tool Bag (Including 4 Screws)