Static Pressure (mm/H2O): 0.84 mm/H2O Power Draw (@ +12V): 0.1A The AF140 Quiet Edition is a great choice for a quiet side panel intake or case exhaust, or even a 'pull' fan for a radiator or heatsink. Eleven ultra-thin blades for excellent airflow 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.