Optimal mix of airflow and static pressure: Enables use as a PC case fan, radiator or CPU cooler. MagLev bearing: Stabilises the rotor for reduced friction and noise and offers a 400,000 hour life Minimised acoustic profile: Whisper quiet, 22.5 dB(A) cooling performance and tuned for an even and stable sound frequency. Aerodynamic fan blade and frame design: Minimises turbulence and maximises airflow Wide operating range: 250 - 1800 rpm for more flexibility and to create a quiet fan curve (fan spins down at 0% PWM utilisation). Vibration damping pads and brackets: Reduces vibrations and prevents rattling noises