Thermaltake 200mm Luna 20 Series White LED High Airflow Case Fan CL-F026-PL20WT-A Anti-vibration mounting system Long-life bearing Unique Fan blade design Higher Air Inflow, less noise High airflow and low noise with 11-fan-blade design High airflow and low noise with 11-fan-blade design Long life sleeve bearing Optimized for Large Volume Cooling Reduced Noise 11-Bladed Fan Design Sleeve Bearing Design for Longer Lifespan Anti-vibration Mounting System