The Cooler Master Mobius 120 Slim is a PC case fan featuring a thin frame that is only 15mm. Ideal for compact PC environments and provides excellent cooling performance and quietness. Latest technology such as three-phase motor and air vents ensure stable wind pressure and efficient air flow. Color: Black Product Size: 4.7 x 4.7 x 0.6 inches (120 x 120 x 15 mm) Fan Speed: 2500 ± 10% RPM Fan Air Flow: Up to 53.7 CFM Fan Air Pressure: Max. 0.1 inch (2.53 mm) H2O Fan Noise Level: Max. 31.4 dBA Fan Bearing: Loop dynamic bearings Power consumption: Maximum 2.4 W Rated Voltage: 12V PWM Connector: 4pin PWM MTTF: 200,000 hours LED: None.