Noctua 120mm NF-A12x25 FLX 2000RPM Premium Case Fan Quiet Cooling 3pin 4pin

Noctua 120mm NF-A12x25 FLX 2000RPM Premium Case Fan Quiet Cooling 3pin 4pin


In stock



The NF-A12x25 is a highly optimised next-generation 120mm fan that integrates Noctua’s latest innovations in aerodynamic engineering in order to achieve an unprecedented level of quiet cooling performance. It takes state-of-the-art technologies such as the AAO (Advanced Acoustic Optimisation) frame or Flow Acceleration Channels and combines them with a record tight tip clearance of only 0.5mm, which is made possible by using the novel Sterrox® liquid-crystal polymer (LCP) compound as well as a metal-reinforced motor hub and axis for ultimate precision. Following the approach of Noctua’s A-series, the NF-A12x25 is a true all-rounder that yields superb results in all types of usage, regardless of whether it’s in low-impedance, airflow-oriented applications such as case cooling, or high-impedance, pressure-demanding scenarios such as on heatsinks and watercooling radiators. The 3-pin FLX version provides 2000/1700/1350rpm speed settings via the supplied Low-Noise Adaptors so as to give full flexibility in configuring the fan for maximum cooling capacity or near-silent acoustics. Topped off with exceptional running smoothness, Noctua’s reference-class SSO2 bearing, a rich bundle of accessories and 6-year manufacturer’s warranty, the NF-A12x25 is a premium-quality product through and through. Its superior efficiency, cutting-edge construction and pioneering materials make it an elite choice for the most discerning demands.
120x120x25 mm
Mounting hole spacing
105×105 mm
Blade Geometry
Rotational Speed (+/- 10%)
2000 RPM
Rotational Speed with L.N.A. (+/- 10%)
1700 RPM
Rotational Speed with U.L.N.A. (+/- 10%)
1350 RPM
102,1 m³/h
Acoustical Noise
22,6 dB(A)
Acoustical Noise with L.N.A.
18,8 dB(A)
Acoustical Noise with U.L.N.A.
14,2 dB(A)
Static Pressure
2,34 mm H₂O
Static Pressure with L.N.A.
1,65 mm H₂O
Static Pressure with U.L.N.A.
1,05 mm H₂O
Max. Input Power
1,68 W
Max. Input Current
0,14 A
12 V
> 150.000 h
Scope of delivery
  • Low-Noise Adaptor (L.N.A.)
  • Ultra-Low-Noise Adaptor (U.L.N.A.)
  • 3:4-pin power supply adaptor
  • 30cm extension cable
  • NA-AV2 anti-vibration mounts
  • Anti-vibration gasket for water cooling radiators
  • Fan screws
6 years

Additional information



Fan Diameter


Power Connection


Max. Fan Speed