---
product_id: 13908736
title: "Top Motor Dual Bearing 40x40x20mm Fan DF124020BH"
brand: "dynatron"
price: "A$1"
currency: AUD
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.au/products/13908736-top-motor-dual-bearing-40x40x20mm-fan-df124020bh
store_origin: AU
region: Australia
---

# 10.28 CFM airflow at 9,000 RPM Compact 40x40x20mm size Dual ball bearing for durability Top Motor Dual Bearing 40x40x20mm Fan DF124020BH

**Brand:** dynatron
**Price:** A$1
**Availability:** ❌ Out of Stock

## Summary

> 💨 Stay cool, stay ahead — the silent powerhouse your setup deserves!

## Quick Answers

- **What is this?** Top Motor Dual Bearing 40x40x20mm Fan DF124020BH by dynatron
- **How much does it cost?** A$1 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/13908736-top-motor-dual-bearing-40x40x20mm-fan-df124020bh)

## Best For

- dynatron enthusiasts

## Why This Product

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

## Key Features

- • **Whisper-Quiet Operation:** Operates below 32 dBA, keeping your workspace serene and focused.
- • **High-Speed Cooling Power:** Spins at 9,000 RPM delivering efficient airflow to keep your system cool under pressure.
- • **Precision Compact Design:** Fits seamlessly into tight spaces without compromising performance.
- • **Dual Ball Bearing Durability:** Engineered for a robust 50,000-hour lifespan—built to outlast and outperform.
- • **3-Pin Connector with RPM Monitoring:** Ensures easy installation and real-time fan speed feedback for optimal control.

## Overview

The Top Motor Dual Bearing 40x40x20mm Fan DF124020BH is a compact, high-performance cooling solution featuring a durable dual ball bearing design, 9,000 RPM speed, and 10.28 CFM airflow. With a low noise level under 32 dBA and a 50,000-hour MTBF, it’s engineered for long-lasting, whisper-quiet operation in desktop environments.

## Description

TOP MOTOR DF124020BH DC12V 0.25A 40X20mm FAN (PAIR)

## Features

- Dimension: 40 (L) x 40 (W) x 20mm (H), Connector: 3pin w/RPM
- Bearing Style: Dual Ball Bearing, MTBF: 50,000hrs
- Air Flow: 10.28 CFM.
- Speed: 9,000 RPM.
- Noise Level: <32 dBA.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 1.57"L x 0.79"W x 1.57"H |
| Brand | Dynatron |
| Power Connector Type | 3-Pin |
| Voltage | 12 Volts |
| Cooling Method | Air |
| Compatible Devices | Desktop |
| Noise Level | 32 Decibels |
| Material | Copper |
| Maximum Rotational Speed | 9000 RPM |
| Air Flow Capacity | 10.28 Cubic Feet Per Minute |
| UPC | 840556068808 |
| Manufacturer | Dynatron |
| Series | FBA_DF124020BH |
| Item model number | FBA_DF124020BH |
| Item Weight | 0.8 ounces |
| Item Dimensions  LxWxH | 3.1 x 0.8 x 1.8 inches |
| ASIN | B000QEAXDO |
| Is Discontinued By Manufacturer | No |
| Date First Available | May 9, 2007 |

## Product Details

- **Product Dimensions:** 1.57"L x 0.79"W x 1.57"H
- **Brand:** Dynatron
- **Power Connector Type:** 3-Pin
- **Voltage:** 12 Volts
- **Cooling Method:** Air
- **Compatible Devices:** Desktop
- **Noise Level:** 32 Decibels
- **Material:** Copper
- **Maximum Rotational Speed:** 9000 RPM
- **Air Flow Capacity:** 10.28 Cubic Feet Per Minute

## Images

![Top Motor Dual Bearing 40x40x20mm Fan DF124020BH - Image 1](https://m.media-amazon.com/images/I/41+NGM+7h+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good fan for PLA extrusion.
*by L***. on May 9, 2016*

Excellent fan, one of the highest CFM outputs I've seen for a 40mm fan. It is quiet at full speed. I use this fan for a 3D printer in order to cool the plastic extruded. It does the job better than the 40mm fan it replaced. Some people say it's loud, I suppose it depends on the application. If you're looking for something whisper quiet then this probably won't do. But in my scenario since the stepper motors generate more noise on my 3D printer than this fan, the noise is negligible.

### ⭐⭐⭐⭐⭐ Strong air flow, reasonably quiet
*by S***L on September 9, 2012*

I bought this fan to add cooling to a 3-D printer I had built (Printrbot). I wanted one that moved a lot of air and that had good bearings for a long life. While I can't attest to long life, the fan does put out a considerable breeze at full speed without sounding "whiny". At lower speeds, it is near-silent. Works fine for my purposes.

### ⭐⭐⭐⭐ Good but loud on 12v
*by E***P on November 15, 2012*

I had to change it to 5v, since i have it for an aquarium and at night on the 12 volt it was too load. I have purchased others that make less noise in 12v like the Scythe Mini Kaze Ultra 40mm x 20mm Silent Mini Fan (SY124020L) but its also less air. I would get this one again since it gives you option to have 5v or 12v with lots of air power.

## Frequently Bought Together

- Top Motor Dual Bearing 40x40x20mm Fan DF124020BH
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**Shop now:** [https://www.desertcart.com.au/products/13908736-top-motor-dual-bearing-40x40x20mm-fan-df124020bh](https://www.desertcart.com.au/products/13908736-top-motor-dual-bearing-40x40x20mm-fan-df124020bh)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-18*