---
product_id: 741101144
title: "Noctua NF-A14x25 G2 PWM Sx2-PP, High-Performance Quiet Fans 2x140mm"
brand: "noctua"
price: "R6488"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Noctua"
url: https://www.desertcart.co.za/products/741101144-noctua-nf-a14x25-g2-pwm-sx2-pp-high-performance-quiet
store_origin: ZA
region: South Africa
---

# 2x 140mm fans for max airflow Ultra-quiet 24.8 dB noise level Precision speed offset ±25 RPM Noctua NF-A14x25 G2 PWM Sx2-PP, High-Performance Quiet Fans 2x140mm

**Brand:** noctua
**Price:** R6488
**Availability:** ✅ In Stock

## Summary

> 🌀 Silence Meets Power: Elevate Your Cooling Game with Noctua’s Precision Fans

## Quick Answers

- **What is this?** Noctua NF-A14x25 G2 PWM Sx2-PP, High-Performance Quiet Fans 2x140mm by noctua
- **How much does it cost?** R6488 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/741101144-noctua-nf-a14x25-g2-pwm-sx2-pp-high-performance-quiet)

## Best For

- noctua enthusiasts

## Why This Product

- Trusted noctua brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Fan Synergy:** Two NF-A14x25 G2 PWM fans with offset speeds eliminate annoying acoustic interference for whisper-quiet operation.
- • **Premium Durability:** SSO2 bearings rated for 150,000+ hours mean these fans keep performing long after others fail.
- • **Push-Pull Perfection:** Optimized for push-pull setups and side-by-side configurations on 280mm radiators, maximizing cooling efficiency.
- • **Cutting-Edge Engineering:** Sterrox LCP blades with Flow Acceleration Channels and Progressive-Bend impellers deliver superior airflow and static pressure.
- • **Complete Vibration Control:** Includes anti-vibration mounts, gaskets, and Low-Noise Adaptors for ultra-smooth, silent airflow.

## Overview

The Noctua NF-A14x25 G2 PWM Sx2-PP is a premium dual 140mm fan set engineered for high-performance, ultra-quiet cooling. Featuring offset speeds to prevent acoustic interference, advanced Sterrox LCP construction, and precision PWM control, these fans excel in push-pull and side-by-side configurations, especially on 280mm radiators. With a noise level as low as 24.8 dB and a lifespan exceeding 150,000 hours, they deliver reliable, whisper-quiet airflow for demanding desktop cooling setups.

## Description

The NF-A14x25 G2 PWM Sx2-PP is a set of two NF-A14x25 G2 PWM square-frame 140mm fans that are offset in speed, which can be beneficial in push-pull operation as well as in situations where two fans are operating side by side, such as in case cooling applications or on 280mm water cooling radiators. When two fans are running at almost the same, constant speed in a push-pull configuration or, albeit to a lesser extent, side by side, their acoustic interaction can lead to undesirable harmonic phenomena such as intermittent vibrations or periodic humming due to interference, which can be heard as beat frequencies. Therefore, the two NF-A14x25 G2 PWM fans contained in the Sx2-PP set are slightly offset in speed (+/- ~25rpm) in order to avoid such phenomena. This fine-tuning is made possible by the fans’ novel etaPERF motor and its NE-FD6 driver IC that achieves extremely precise speed control and, thanks to its SupraTorque feature, can leverage extra torque headroom to keep the exact desired speed even when working against significant flow resistance such as on water cooling radiators and heatsinks. With one fan running ~25rpm slower (PPA) and one ~25rpm faster (PPB), the overall cooling performance can be kept the same while efficiently preventing intermittent vibrations or periodic humming. Since the perception of beat frequencies can vary depending on psychoacoustic preferences, users can easily further optimise acoustics by slowing the PPA fan down a little more through PWM control or the supplied Low-Noise-Adaptor, which will result in an even smoother sound signature due to the increased offset.

Review: Great silent performance - Best fans and most quiet fans there are.
Review: worth the price - quiet and efficient

## Features

- Dedicated dual fan set with two NF-A14x25 G2 PWM 140x25mm fans that are slightly off-set in speed (+/- ~25rpm) in order to avoid undesired acoustic interaction phenomena
- State-of-the-art engineering (Progressive-Bend impeller with winglets and Centrifugal Turbulator, Flow Acceleration Channels, AAO frame) and construction (Sterrox LCP, ultra-tight tip clearance)
- Ideal choice for push-pull applications as well as situations where two fans are operating side by side (280mm water cooling radiators, case intake or exhaust fans, etc.)
- Includes anti-vibration mounts, anti-vibration gaskets for tighter seal on radiators, fan screws, Low-Noise Adaptors (LNA), extension cables and y-cable for running two fans on the same header
- Trusted Noctua quality with premium-grade SSO2 bearing (MTTF > 150,000 h), safety certifications from UL and TÜV, protected against reverse polarity, over voltage and over current (short-circuits)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DDXRD5RK |
| Best Sellers Rank | #191,692 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #1,040 in Case Fans |
| Brand | Noctua |
| Brand Name | Noctua |
| Compatible Devices | Desktop |
| Cooling Method | Air |
| Customer Reviews | 4.8 out of 5 stars 363 Reviews |
| Item Dimensions L x W x H | 14L x 14W x 2.5H Centimeters |
| Item Weight | 0.68 Kilograms |
| Manufacturer | Noctua |
| Material Type | Sterrox LCP |
| Max Rotational Speed | 1500 RPM |
| Model Number | NF-A14x25 G2 PWM Sx2-PP |
| Noise Level | 24.8 Decibels |
| Number of Items | 2 |
| Part Number | NF-A14x25 G2 PWM Sx2-PP |
| Power Connector Type | 4-Pin |
| Product Dimensions | 14L x 14W x 2.5H Centimeters |
| Unit Count | 2.0 Count |
| Voltage | 12 Volts |

## Product Details

- **Brand:** Noctua
- **Cooling Method:** Air
- **Power Connector Type:** 4-Pin
- **Product Dimensions:** 14L x 14W x 2.5H Centimeters
- **Voltage:** 12 Volts

## Images

![Noctua NF-A14x25 G2 PWM Sx2-PP, High-Performance Quiet Fans 2x140mm - Image 1](https://m.media-amazon.com/images/I/81CxumffFML.jpg)
![Noctua NF-A14x25 G2 PWM Sx2-PP, High-Performance Quiet Fans 2x140mm - Image 2](https://m.media-amazon.com/images/I/81KqY7-7oNL.jpg)
![Noctua NF-A14x25 G2 PWM Sx2-PP, High-Performance Quiet Fans 2x140mm - Image 3](https://m.media-amazon.com/images/I/71euTmmyxYL.jpg)
![Noctua NF-A14x25 G2 PWM Sx2-PP, High-Performance Quiet Fans 2x140mm - Image 4](https://m.media-amazon.com/images/I/712cYPr6KgL.jpg)
![Noctua NF-A14x25 G2 PWM Sx2-PP, High-Performance Quiet Fans 2x140mm - Image 5](https://m.media-amazon.com/images/I/711bn922bhL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great silent performance
*by S***. on 3 December 2025*

Best fans and most quiet fans there are.

### ⭐⭐⭐⭐⭐ worth the price
*by A***X on 9 May 2026*

quiet and efficient

### ⭐⭐⭐⭐⭐ Quiet, powerful, pricey
*by C***W on 7 May 2026*

Quiet, hope it lasts as long as the previous Noctual A-series fans Pretty pricey though

## Frequently Bought Together

- Noctua NF-A14x25 G2 PWM Sx2-PP, Dual Fan Set for Push-Pull and Side-by-Side Applications (Brown)
- Noctua NF-A14x25 G2 PWM, Premium-Quality Quiet 140mm PC Fan, 4-pin (Brown)
- Noctua NF-A12x25 PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)

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**Shop now:** [https://www.desertcart.co.za/products/741101144-noctua-nf-a14x25-g2-pwm-sx2-pp-high-performance-quiet](https://www.desertcart.co.za/products/741101144-noctua-nf-a14x25-g2-pwm-sx2-pp-high-performance-quiet)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-08-18*