EK-Meltemi 120ER are 38mm thick extreme high-static pressure computer cooling fans, designed purely for highest-performance computer liquid cooling systems. Developed in-house on the basis of renowned EK-Vardar fans, they have a wide PWM range of operation. Its high-quality Dual-Ball bearing and the Start-Stop function ensures the lowest of noise emissions and a true 0db environment if your PC is not under load. Due to a 38mm thick frame, there is space for an upgraded motor and far superior performance compared to any standard 25mm thick fan at the same RPM range. EK recommends using the EK-Meltemi fans in "pull" mode for the best performance.