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3 Pack of fans The EK-Vardar X3M 120ER is a high-static pressure computer cooling fan with added aesthetical interchangeable rubber dampers. The rubber details on the corners of the fan are also there to reduce vibration and noise. These rubber dampers come pre-installed for use in push orientation but can be removed and mounted the other way around, for a pull flow orientation. To further make the sound profile more pleasant, airflow optimizations were made to the rotor as well. The X3M fans are set to push mode out of the box, but the dampers can be easily detached by using a 3mm Allen key and flipped, thus setting the fan in a pull setup. Supplied with the fan are also four UNC 6-32 10mm long screws which are used to attach the fans to radiators if desired. Additional four thumb nut screws are also delivered which are used to mount the X3M fans into PC cases. Performance characteristics: - Max air flow: 67 CFM = 114 m³/h - Static pressure: 2.75 mm H2O = 27 Pa - Noise level: 34.2 dBA Mechanical and electrical specifications: - Maximum speed: 2200 rpm (+/- 10%) - Rated Voltage: 12V DC - Power Draw: ~2.16W (0.18A) - PWM Duty Cycle: 25-100% - ER (Extended Range) - Connector: 4-pin PWM header - Bearing Type: Dual-Ball bearing - Bearing durability: 50.000 hrs @ 40°C (MTBF) - Dimensions: 120 x 120 x 27.5 mm - Black cable length: 50cm