Rigid Brass Housing + Fluid Dynamic Bearing = PERFECT This IceGALE™ fan has rigid brass housing that provides a reliable product and also has a fluid dynamic bearing to reduce noise levels so that it ensures a quiet operation. Automatic START/STOP Function Creates a quiet environment and reduces power consumption, decreasing heat, to create a more comfortable work/play experience. When the fan is in off mode it goes silent, until the PWM duty cycle reach 21% loading. Speeds Up to 1600 RPM With a range from 500 RPM to 1600 RPM, this fan gives you the range to perform at a high-level with as little noise as possible. Two-Plane Balance is Better Than One Like any other IceGALE™ fan from Iceberg Thermal, this fan comes equipped with two-plane balance to ensure stability in your fan. Picking Up Bad Vibrations? Our fans are designed with anti-vibration pads on the outer corners of the fans to absorb and eliminate vibrations so that your user experience is enhanced in a quiet environment. Airflow Like No Other! This fan gives you what you can’t find anywhere else with 96 CFM airflow that will give your hardworking PC the breeze it deserves.