Static Pressure (mm/H2O): 3.1 mm/H2O Power Draw (@ +12V): 0.18A The SP120 High Performance Edition, at full RPM, has outstanding static pressure, up to 3.1mm/H2O, when used on a radiator or heatsink. Seven wide body, low-pitch custom blades for optimal static pressure at very low noise levels. Custom fan enclosure for ducting air in the right direction with minimal interference. Advanced Hydraulic Bearing for reliable, quiet operation. Rubberized corners for sound damping when installed with standard screws. User-replaceable colored rings so you can match your fans to your case Included voltage step-down adapter for even quieter operation.