120mm Noctua NF-S12B redux 700 case fan — 700 RPM, 56.9 m³/h, 6.8 dB, SSO bearing, 3‑pin, 120×25 mm

The Noctua NF-S12B redux 700 is a 120 mm case fan specifically developed for low-impedance ventilation where high airflow and low noise are required. The redux edition presents the classic NF-S12B design in a streamlined, affordably priced package while retaining core features such as the industry-grade SSO-Bearing, a >150,000 h MTBF rating and a full 6-year manufacturer’s warranty. The extra-slow 700 rpm speed makes this model especially suitable for ultra-quiet operation.

Advantages

The NF-S12B redux 700 combines efficient high-airflow performance with very low acoustic emissions thanks to its optimized blade geometry and bevelled blade tips that reduce rotor-stator interaction. It uses Noctua’s custom NE-FD1 PWM IC with Smooth Commutation Drive (SCD) to suppress PWM switching noise at lower speeds. The SSO-Bearing provides long-term stability and reliability, and the fan is backed by a manufacturer’s warranty and a high MTBF rating.

Suitable for

• Quiet PC case ventilation where airflow is prioritized over static pressure
• Home and office workstations requiring near-silent operation
• HTPCs and media centers with low-noise requirements

Key specifications

• Model: Noctua NF-S12B redux 700 (NF-S12B REDUX-700)
• Fan size: 120 mm
• Speed: 700 RPM (extra slow)
• Airflow: 56.9 m³/h
• Rated voltage: 12 V
• Bearing: SSO-Bearing
• MTBF: >150,000 hours
• Warranty: 6 years
• EAN: 4716123315308

How to use

Install the fan in a standard 120 mm fan mount in your PC case, observing airflow direction indicated on the frame. Connect to a 3- or 4-pin motherboard header or a compatible fan controller; when connected to a PWM-capable 4-pin header the fan supports automatic speed control. Use the supplied mounting method or optional anti-vibration mounts to reduce transfer of vibration to the case.

Recommendations

For best results in typical case ventilation, position the NF-S12B redux 700 as an intake or exhaust fan where high airflow with low impedance is required. Consider Low-Noise-Adaptors or anti-vibration mounts to further reduce perceived noise in very quiet systems.