Thermaltake Riing Quad Cooling Fan - 3 Pack - 4.72in Maximum Fan Diameter - 306 gal/min Maximum Airflow - 1500 rpm - 25 dB(A) Noise - Hydraulic Bearing - RGB LED - 3 pc(s) - Radiator, Chassis - 4.6 Year Life

Colorful rgb LEDs add an ultra-modern style Fully compatible with standard radiators Well designed blades and shroud let the air flow over a greater area to enable effective cooling Features hydraulic bearing to improve longevity, silence, and stability