The Noctua NF-A4x10 5V PWM is a compact 40mm fan engineered for 5V power environments and applications requiring precise speed control via PWM. Despite its small size, it integrates Noctua’s signature aerodynamic and acoustic optimizations, making it ideal for Raspberry Pi setups, network appliances, NAS, DVRs, and other embedded systems that demand reliable cooling under tight space and voltage constraints.

Key Features:

• 5V operating voltage with full 4-pin PWM speed control

• Advanced aerodynamic design with Flow Acceleration Channels

• SSO2 bearing for ultra-low noise and extended lifespan

• Compact 40x40x10 mm size for embedded or industrial use

• Includes OmniJoin™ adapter set for non-standard 2-pin headers

Specifications:

• Dimensions: 40 x 40 x 10 mm

• Weight: ~20 g

• Rated Speed:
   • 5000 RPM ±10%
   • With L.N.A.: 4400 RPM

• Airflow:
   • 8.2 m³/h
   • With L.N.A.: 6.8 m³/h

• Acoustical Noise:
   • 19.6 dB(A)
   • With L.N.A.: 14.9 dB(A)

• Static Pressure:
   • 1.78 mmH₂O
   • With L.N.A.: 1.32 mmH₂O

• Connector: 4-pin PWM

• Voltage: 5V

• Power Consumption: 0.4 W

• Bearing: SSO2

• MTBF: >150,000 hours

Compatibility:
Designed for 5V-only applications such as Raspberry Pi, USB-powered devices, and embedded systems. Not compatible with standard 12V fan headers—risk of damage if misused. Includes OmniJoin™ adapter cables for converting to 2-pin proprietary fan headers.

Additional Features:

• Includes Low-Noise Adapter for quieter operation

• 30cm extension cable and 3:4-pin USB power adapter

• Rubber anti-vibration mounts and standard fan screws

• Excellent replacement for noisy stock fans in industrial gear

Customer Benefits:
The NF-A4x10 5V PWM provides an exceptionally quiet, durable, and flexible cooling solution for ultra-small systems. Whether upgrading stock fans or building a custom SFF rig, it ensures reliable airflow with professional-grade acoustics and control.

What’s in the Box:

• NF-A4x10 5V PWM fan

• Low-Noise Adapter (L.N.A.)

• OmniJoin™ Adapter Set

• 30cm extension cable

• 4x anti-vibration mounts

• 4x fan screws

• User manual

Compliance:
This product meets all applicable European and international standards (CE, RoHS, REACH, WEEE, etc.). It has been designed and tested for maximum safety, performance, and environmental responsibility.

Manufacturer Contact:
Company Name: Noctua
Address: Noctua Produktions GmbH, Lastenstraße 19, 4020 Linz, Austria
Email: support(at)noctua(dot)at