Cooler Master Mobius 120 OC Case Fan Ring Blade Design (PWM), Speed, Anti Vibration Dampers, Dual Ball Bearings, Metal Motor Hub (max. 88.1 CFM, 4.75 mmH2O, 39.3 dBA) Dark Blue & Black

HIGH-PRESSURE CASE FAN - The Mobius 120 OC case fan features premium materials & upgraded engineering for an extended lifespan in extreme conditions such as ultra-compact (SFF) cases, overclocking, or high-intensity hardware usage (gaming & video editing) RING BLADE DESIGN - A revolutionary ring blade design employs connected fan blades with a more stable structure that reduces vibration & subsequent noise (17.4 - 39.3 dBA); Premium anti-vibration dampers ensure a stable, silent performance DUAL BALL BEARINGS - Dual ball bearings reduces friction to eliminate noise & increase durability in any orientation, (200,000 hours MTTF); A sturdy metal motor hub reinforces the fan stability for extended fan performance FAN SPEED SWITCH - A built-in fan speed cable switch features low, medium and high settings (4-Pin PWM); Optimise the fan speed for cooling performance (1500 - 2400 - 3200 RPM) or for low noise (near silent 17.4 - 31.3 - 39.3 dBA) ANGLED INNER FRAME – An angled inner frame with chamfered sides help focus & direct airflow for maximum pressure & efficiency (88.1 CFM, 4.75 mmH2O) which is integral to improving cooling performance