The Noctua NF-A12x25 5V PWM is a specialized 120 mm fan engineered for 5V environments with full PWM control. Leveraging Noctua’s cutting-edge design features—such as ultra-tight tip clearance enabled by Sterrox® liquid-crystal polymer blades and SSO2 bearings—this model delivers best-in-class acoustics and static pressure. It is the ideal solution for mission-critical 5V applications including fan upgrades in NAS systems, embedded devices, network equipment, and advanced modding projects.

Key Features:

5V fan with 4-pin PWM support for dynamic speed control

Sterrox® LCP impeller with only 0.5 mm tip clearance for maximum efficiency

High static pressure design for use on heatsinks and filters

SSO2 bearing system for whisper-quiet, long-term operation

Includes USB cable, OmniJoin™ adapter set, and extension cable

Specifications:

Dimensions: 120 x 120 x 25 mm

Weight: 210 g

Materials: Sterrox® LCP impeller, PBT frame, metal bearing shell

Speed Range: 450 – 2000 RPM (PWM controlled)
Airflow: Up to 102.1 m³/h
Noise Level: Max 22.6 dB(A)
Static Pressure: 2.34 mm H₂O

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

Input Voltage: 5V
Input Power: 0.75 W
Input Current: 0.15 A
Connector: 4-pin PWM
MTTF: >150,000 hours

Connectivity / Compatibility:

• 5V systems requiring precise fan control via PWM (Raspberry Pi, NAS, SBCs)

• USB-powered fan hubs or embedded controllers with 4-pin output

• Includes USB power cable and OmniJoin™ adapters for wide device integration

Additional Features:

• Modular cabling with 30 cm extension included

• Reverse polarity protection

• Anti-vibration mounts for reduced structure-borne noise

• Full PWM speed modulation from near-silent to high-performance airflow

Customer Benefits:
Designed for projects where both compact voltage constraints and dynamic thermal management are crucial, the NF-A12x25 5V PWM brings Noctua’s flagship fan design to the low-voltage world. It’s the definitive upgrade for silent yet powerful 5V cooling control.

What’s in the Box:

1x NF-A12x25 5V PWM 120 mm Fan

1x 30 cm extension cable

1x USB power cable

4x OmniJoin™ adaptor cables

4x Anti-vibration mounts

4x Fan screws

User manual

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

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