Upgrading it to a push/pull-style dual-fan setup makes it possible to further improve cooling performance or to reduce noise levels by having two fans running at lower speeds. The kit includes a second NF-P12 redux-1700 PWM fan, anti-vibration pads, fan mounting clips, a 4-pin PWM y-cable as well as two Low-Noise Adaptors – everything you need to boost the efficiency of your NH-U12S redux!.
Noctua NA-FK1 Redux, Second Fan Upgrade Kit for NH-U12S Redux Cooler
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NA-FK1 redux
Upgrades the NH-U12S redux to a push/pull dual-fan configuration for improved performance or lower noise levels when running both fans at lower speed
Noctua NA-FK1 Redux, Second Fan Upgrade Kit for NH-U12S Redux Cooler
Noctua Updates the NH-U12S as the Redux Product Line's First CPU Cooler
Noctua NH-U12S redux Review (Page 1 of 4)
Noctua NH-U12S Redux CPU Cooler Review
Noctua NH-U12S Redux Cooler Review