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 an included step-down resistor for even quieter operation, 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.