ASUS ROG STRIX XF120 120mm 4-pin PWM Case Fan with MagLev Bearing 22.5 dB(A) 250-1800 RPM

Whisper-quiet, 4-pin PWM fan for PC chassis, CPU and radiator cooling MagLev Bearing: 400,000-hour life span, quiet acoustic profile and high efficiency Optimized Acoustic Profile: Whisper-quiet, 22.5 dB(A) cooling performance and tuned to deliver a smooth and stable sound frequency Extensive Operating Range: 250 - 1800 RPM range for more flexibility to create a quiet fan curve and fan spins down completely at 0% PWM utilization Aerodynamic Fan Blade and Frame Design: Minimizes turbulence and maximizes airflow ? Anti-Vibration Pads and Mounts: Reduces vibrations and prevents rattling