The Noctua NF-A4x10 FLX is a premium-grade 40mm fan engineered for ultra-compact applications requiring high reliability, efficient airflow, and quiet operation. With three included speed options via Low-Noise Adapters, this fan is ideal for networking devices, DVRs, NAS enclosures, and other 24/7 embedded systems where space is limited but performance and silence matter.

Key Features:

• 40mm ultra-compact design for tight spaces and embedded environments

• Flexible speed control with FLX version: 4500 / 3700 / 2900 RPM via included adapters

• Flow Acceleration Channels and AAO frame for optimized airflow and acoustics

• SSO2 bearing for exceptional reliability and smooth operation

• Includes OmniJoin™ adapter set for proprietary 2-pin fan headers

Specifications:

• Dimensions: 40 x 40 x 10 mm

• Weight: 50 g

• Materials: Fiberglass-reinforced polyamide (PA-GF)

• Connectivity / Compatibility: 3-pin fan header (with OmniJoin™ adapter included)

• Bearing: SSO2 (Self-Stabilising Oil-pressure Bearing)

• Max Rotational Speed:
  – 4500 RPM (default)
  – 3700 RPM (with L.N.A.)
  – 2900 RPM (with U.L.N.A.)

• Max Airflow:
  – 8.2 m³/h (4500 RPM)
  – 6.7 m³/h (L.N.A.)
  – 5.1 m³/h (U.L.N.A.)

• Acoustical Noise:
  – 17.9 dB(A) (4500 RPM)
  – 12.9 dB(A) (L.N.A.)
  – 8.5 dB(A) (U.L.N.A.)

• Static Pressure:
  – 1.78 mm H₂O (4500 RPM)

• Input Power: 0.6 W

• Voltage Range: 12V DC (typical), 5–13.2V operational

Additional Features:

• Integrated anti-vibration pads

• Smooth Commutation Drive (SCD) minimizes PWM switching noise

• Ideal for continuous-use environments (MTTF: 150,000 hours)

• Trusted in industrial, medical, and digital signage applications

Customer Benefits:
Compact, quiet, and highly configurable, the NF-A4x10 FLX is a best-in-class cooling solution for space-limited enclosures that still demand thermal stability and reliability. Its flexible speed options let users strike the perfect balance between cooling and silence.

What’s in the Box:

• NF-A4x10 FLX Fan

• Low-Noise Adapter (L.N.A.)

• Ultra-Low-Noise Adapter (U.L.N.A.)

• OmniJoin™ Adapter Set

• 30cm Extension Cable

• 4x Vibration-Compensated Fan Screws

• 4x Standard Fan Screws

• User Manual

Compliance:
This product is compliant with CE, RoHS, REACH, and WEEE regulations. It is manufactured under strict quality controls to ensure long-term durability and environmental responsibility.

Manufacturer Contact:
Company Name: Noctua
Address: Industriestrasse 12, 6020 Innsbruck, Austria
Email: support(at)noctua(dot)at