Static Pressure (mm/H2O): 1.29 mm/H2O Power Draw (@ +12V): 0.08A The SP120 Quiet Edition, at full RPM, is an extremely quiet 23dBA while maintaining an impressive 1.29mm/H2O static pressure level. 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.