Noctua NF-P14r REDUX PWM 1500RPM 120/140mm Quiet Case Fan, ROUND Featuring a round frame designed for use on CPU coolers & now designated as NF-P14r (r for round frame), the classic NF-P14 is a long-standing favourite among enthusiast users around the world & helped to found Noctua's reputation as a top-tier manufacturer of premium quality quiet cooling components. The new redux edition reissues this award-winning model in a streamlined, accessibly priced package that has been reduced to the essential core: the NF-P14 premium fan. Its industry grade SSO bearing, over 150.000 hours MTBF rating & full 6 years manufacturer's warranty make the NF-P14 redux a proven premium choice that provides trusted Noctua quality at an attractive price point. The performance-oriented top speed of the 1500rpm PWM version is ideal for high efficiency case, radiator & CPU cooling as well as other applications that require both extended performance headroom & PWM for automatic speed control. Features Proven NF-P14 PWM design Streamlined redux edition Round 140mm frame with 120mm mounting holes Vortex-Control Notches Custom designed PWM IC with SCD Six year manufacturer's warranty Proven NF-P14 design Tens of thousands of quiet cooling enthusiasts around the globe swear by Noctua's classic NF-P14. Thanks to its impressive quietness, excellent performance & impeccable quality, the NF-P14 has become an established reference for quiet 140mm fans. Streamlined redux edition The redux product line reissues some of Noctua's most popular, award-winning models by presenting them in streamlined, accessibly priced packages. All redux edition products are industry proven, time-tested models that helped to found Noctua's reputation as a first-tier supplier of premium grade low noise cooling equipment. Round 140mm frame with 120mm mounting holes Using a round frame with the same hole-spacing as common 120mm fans & producing more airflow due to its larger diameter, the NF-P14r is a perfect upgrade for 120mm CPU or case fans. Pressure-optimised Nine-Blade Design Specifically developed for high-impedance applications such as CPU coolers, water-cooling radiators or cases with tight fan grills, the NF-P14's nine-blade impeller provides outstanding pressure & airflow performance. Vortex-Control Notches Noctua's signature Vortex-Control Notches split up trailing edge vortices & thus spread the fan's noise emission over a wider range of frequencies. This measure makes the fan sound more pleasant to the human ear. Custom designed PWM IC with SCD Supporting fully automatic speed control via PWM, the fan uses Noctuas custom designed NE-FD1 PWM IC that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises & thus makes the fan quieter at lower speeds. SSO-Bearing Combining the proven concept of hydrodynamic bearings with an additional magnet that supports the self-stabilisation of the rotor axis, Noctua's time-tested SSO-Bearing technology has become synonymous with supremely quiet operation & exceptional long-term stability. Optional accessories Users can choose from Noctua's wide range of optional accessories such as anti-vibration mounts, Low-Noise-Adaptors, y-cables, 3:4 pin adaptors or extension cables to upgrade redux edition fans according to their individual needs. Click here for available options. Six year manufacturer's warranty Noctua fans are renowned for their impeccable quality & outstanding longevity. Like all Noctua fans, the redux edition models feature an MTBF rating of more than 150, 000 hours & come with a full six year manufacturer's warranty. Specifications NF-P14r REDUX PWM 15 Size 140x 140x 25 mm Connector 4-pin PWM Bearing SSO Rotational Speed (± 10%) 1500 RPM Min. Rotational Speed (PWM, ±20%) 450 RPM Airflow 78.6 CFM Acoustical Noise 25.8 d B (A) Static Pressure 1.91 mm H2O Max. Input Power 2.4 W Max. Input Current 0.2 A Voltage 12 V MTBF > 150, 000 h Accessories Four Fan Screws