So basically Corsair just announced and released 120 and 140mm fans with Magnetic Levitation Bearing and a custom rotor design, the ML Series is designed to deliver higher airflow, lower noise and better cooling and does so by doing that with almost friction-less operation. And all that can be achieved at fairly low RPM levels.

For those who do not know what Magnetic levitation is, it is short for maglev, or magnetic suspension and is a method by which an object is suspended with no support other than magnetic fields. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations. That means no more ball bearings and thus less friction. That reduction in friction in comparison to all conventional physical bearings allows the ML Series to offer lower noise at higher RPMs. Corsair is now offering these fans in a whopping ten models based on colors and sizes. The ML, ML PRO and ML PRO LED models will be available in both 120mm and 140mm sizes. All ML fans offer a huge PWM range, giving users total control over how their fans perform. If you treasure silence above anything (that would be me) then at 400 RPM, the ML Series will push more airflow at near silent 16 dBA (decibel A-weighting).If you want to levitate that PC of yours you could push up to 97 CFM (cubic feet per minute) of air. The ML Series also allows for some customization as the PRO models feature removable color corners fitted to the fan's vibration dampening rubber grommets, allowing you to match your PC colors towards the fans and thus the overall build. The ML PRO LED SKUs have four LEDs mounted into the central fan hub.