Optimal blend of airflow and static pressure: Enables use as a PC case, radiator or CPU cooler fan MagLev bearing: Stabilizes rotor for reduced friction and noise, and offers 400,000-hour life span Minimized acoustic profile: Whisper-quiet, 22.5 dB(A) cooling performance and tuned to deliver a smooth and stable sound frequency Aerodynamic fan blade and frame design: Minimizes turbulence and maximizes airflow ? Extensive operating range: 250 – 1800 rpm range for more flexibility and to create a quiet fan curve (fan spins down at 0% PWM utilization) Anti-vibration pads and mounts: Reduces vibration and prevents rattling 5-year warranty