Phanteks 850RPM Case Fan Blades 20030mm Fan Retail Cooling PH-F200SP_BK Black The new PH-F200SP are angled lower to achieve higher air pressure. The redesigned MVB blades generate better performance and better airflow. It improves the balance of airflow and air pressure when using with as a case fan. The PH-F200SP has a larger base size with a magnetic brushless DC motor to avoid the effects of resonance and for rotational stability. With the noise reduction challenges in mind, we modified the component for lower actuator noise, PCBA for lower electromagnetic noise, brushless motor structure for lower operating noise and frame rib for lower wind and vibration noise. The new nine high pressure MVB blades are precisely angled to generate a silent controlled airflow. The blades produces a downdraft vortex allowing for greater amount of air passage through and reduce airflow turbulence across the surface of the blades to create significantly better performance and airflow while keeping noise to a minimum. Composed by MOSS and SSC systems, Phanteks' UFB bearings have an effective hub-tip ratio to achieve a state of equilibrium reducing air and vibration noise. SSC provides an increase in the bearing's lifespan and ensures that the fan's axis is consistently operational and quiet. Phanteks PH-F200SP comes bundled with a 400mm extension cable to improve cable management, total up to 900mm cable length for big full-tower case or Radiator fan upgrade. Eight pre-installed rubber pads are now bigger & designed to reduce more vibration.