Noctua 92 mm case fan NF-B9 redux-1600 PWM, 92 mm, 12V, 350–1600 RPM, 64.3 CFM, 17.6 dB

The Noctua NF-B9 redux-1600 PWM is a 92 mm case fan designed to deliver reliable, quiet cooling for PC systems. This redux edition preserves the proven NF-B9 design in a streamlined, more affordable package while keeping core features such as an SSO bearing, a rated MTBF of over 150,000 hours and a full 6-year manufacturer’s warranty. The PWM-equipped 1600 RPM model uses Noctua’s NE-FD1 PWM IC for automatic speed control to balance cooling performance and noise.

Advantages

The fan combines Noctua’s established aerodynamic features — Vortex-Control Notches and bevelled blade tips — with Smooth Commutation Drive 2 and the SSO bearing to reduce noise and improve efficiency. Its compact 92 mm size, black-and-grey color scheme and robust lifetime rating make it a dependable option for a variety of PC cooling tasks. Optional accessories such as anti-vibration mounts, Low-Noise-Adaptors and extension or adapter cables allow flexible installation and tuning.

Suitable for

• Case cooling in compact and mid-tower PCs
• Replacement or upgrade of existing 92 mm fans
• Situations requiring a balance of airflow and low noise (fan speed 350–1600 RPM)

Key specifications

• Type: Fan
• Fan diameter: 92 mm
• Speed range: 350–1600 RPM (PWM)
• Max. static pressure: 1.61 mmH2O
• Voltage: 12 V
• Dimensions: 92 × 25 × 92 mm
• Colours: Grey, Black
• MPN: NF-B9 REDUX-1600 PWM
• EAN: 4716123315315
• MTBF: >150,000 hours
• Warranty: 6 years

How to use

Install the fan in a standard 92 mm mounting location using the included screws or optional anti-vibration mounts. Connect the 4-pin PWM connector to a motherboard fan header that supports PWM control to allow automatic speed regulation via the NE-FD1 IC. Ensure the fan’s airflow direction matches your case ventilation plan and provide clearance from cables and other components to avoid obstruction.

Recommendations

For best results, use the NF-B9 redux-1600 PWM on CPU coolers or case exhaust/intake positions where a compact 92 mm fan is required. If lower noise is preferred, enable PWM control in BIOS or use a Low-Noise-Adaptor to limit maximum RPM.