Thermaltake TOUGHFAN 14 Black PWM 500~2000rpm-controlled high Static Pressure 140mm Circular Radiator Fan with with Anti-Vibration Mounting System Cooling, (2 Fan Pack) CL-F085-PL14BL-A

TOUGHFAN 14 fan (2-pack), from Thermaltake
A high static pressure fan ideal for use with air CPU coolers and liquid cooler radiators. As the name suggests, this fan is built tough with special compound for blades, a metal-reinforced motor hub, and a durable frame. It also operates at whisper-quiet acoustics thanks to the 2nd generation hydraulic bearing, rubber padding at mounting holes, and max. 2000 RPM with PWM speed control.

Unparalleled Cooling Performance
The TOUGHFAN is a PWM controlled fan which is designed to perform at a maximum operating speed of up to 2000 RPM allowing unparalleled cooling performance.

Exceptional Blade Design
Featuring high tensile strength and low thermal expansion coefficient materials, the fan blade is built with special liquid crystal polymer (LCP), a compound which minimizes vibration when the fan is operating at full speed.

Metal-Reinforced Motor Hub
The TOUGHFAN’s center is constructed with a full steel motor hub providing enhanced stability and durability.

The 2nd Generation Hydraulic Bearing
The 2nd generation hydraulic bearing incorporates a new shaft design with inside etches allowing preservation of lubricant on both sides whilst reducing noise during operation. Lowering audible levels and extending lifespan.