Cooler Master SickleFlow X 120mm Case Fan R4-SXNP-20FK-A1: The Cooler Master SickleFlow X introduces the new features to the 120mm cooling fan series. Thanks to the 4th generation bearing and POM material, the life expectancy is pushed up to an incredible 160,000 hours. Smart fan engine design prevents the damage and provides great cooling performance with maximum 2,000 RPM fan speed.
Features - 4th Generation Bearing - MTBF of 160,000 hours thanks to highly durable POM components. - Smart Fan engine - stops the fan when blocked to prevent damage, and automatically restarts the fan when it has been cleared. - Red / Blue / Green smooth LED lights provide freedom of choice to the users.