SILENT AND POWERFUL WITHOUT COMPROMISE - equally quiet and powerful operationSilent Wings 4 120 mm PWM high speed white is the perfect choice for all applications of fans. Whether in the housing, on radiators or radiator - features like volume-optimized fan blades and the funnel-shaped air outlet make Silent Wings 4 120 mm PWM high-speed white a fan, which does not make any compromises between very low-noise operation and highest performance.OPTIMIZED FOR HIGH-END PERFORMANCE - minimum dimensions for maximum air pressureSilent Wings 4 120 mm PWM high speed white provides extraordinary air pressure and increases significantly the performance of the system in which it is installed. This is made possible by the shorter distance between fan blades and the frame. This cools Silent Wings 4 120 mm PWM high-speed white reliably even the most demanding high-end hardware.DIFFERENT fans corners - for every applicationSilent Wings 4 120 mm PWM high speed white has 2 different types of fan corners