An excellent, quiet choice for heatsinks and radiators The wide body, low-pitch blades of the SP120 fans combined with the custom housing provides outstanding static pressure and airflow through heatsinks or radiators. With rubberized corners, a quiet and reliable Advanced Hydraulic Bearing, and PWM support for increased fan speed control, the SP120 truly is the strong, silent type. Included in the box are the three user-replaceable colored rings, in red, blue, and white, so you can customize your fan to match your case?s components. Each fan also features blacked-out wires and connectors, so your build looks elegant and clean when done. Available in single and twin packs. - The SP120 Quiet Edition, at full RPM, is an extremely quiet 23dBA while maintaining an impressive 1.29mm/H2O static pressure level. - 4-PIN PWM Support for increased fan speed control. - 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 Package contents - SP120 PWM Quiet Edition Airflow Fan - Three colored rings in red, blue, and white. - Mounting Screws\r\nImport charges may apply to your purchase. Find out whether these apply here: http://www.whatsmyduty.org.nz/