---
product_id: 257612024
title: "40mm x 20mm 12V Dual Ball Bearing DC Brushless Cooling Fan for 12 Volt PSU Replacment, DIY Small Electronic Equipment Cooling"
brand: "wathai"
price: "€ 29.22"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/257612024-40mm-x-20mm-12v-dual-ball-bearing-dc-brushless-cooling
store_origin: SK
region: Slovakia
---

# 6000 RPM high-speed airflow Ultra-quiet 26dBA noise level Dual ball bearing for 50,000 hrs lifespan 40mm x 20mm 12V Dual Ball Bearing DC Brushless Cooling Fan for 12 Volt PSU Replacment, DIY Small Electronic Equipment Cooling

**Brand:** wathai
**Price:** € 29.22
**Availability:** ✅ In Stock

## Summary

> 🌀 Stay cool, stay ahead — power your gear with precision airflow!

## Quick Answers

- **What is this?** 40mm x 20mm 12V Dual Ball Bearing DC Brushless Cooling Fan for 12 Volt PSU Replacment, DIY Small Electronic Equipment Cooling by wathai
- **How much does it cost?** € 29.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/257612024-40mm-x-20mm-12v-dual-ball-bearing-dc-brushless-cooling)

## Best For

- wathai enthusiasts

## Why This Product

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

## Key Features

- • **Efficient Airflow:** Delivers 7.85 CFM airflow at 12V to keep your devices cool and running smoothly under pressure
- • **Compact Powerhouse:** 40x40x20mm size fits perfectly in tight spaces for seamless PSU and electronics upgrades
- • **Whisper-Quiet Cooling:** Operates at just 26dBA, keeping your workspace distraction-free while maintaining peak performance
- • **Plug & Play Convenience:** Comes with mounting screws, nuts, and a 20cm cable with XH2.54-2Pin connector for easy installation
- • **Long-Lasting Reliability:** Dual ball bearing design ensures up to 50,000 hours of consistent, maintenance-free operation

## Overview

The Wathai 40mm x 20mm 12V dual ball bearing brushless cooling fan is engineered for high-speed, ultra-quiet cooling in compact electronic devices like PSUs, 3D printers, and NAS systems. With a robust 50,000-hour lifespan, 6000 RPM speed, and 7.85 CFM airflow, it ensures reliable thermal management while minimizing noise. Its plug-and-play design includes mounting hardware and a 20cm cable, making it the go-to upgrade for professionals seeking efficient, durable cooling solutions.

## Description

Package include: 1 Piece fan and mounting screws & nuts  Size:40x40x20mm  Rated Voltage:12V Rated Current: 0.05A Connecter: XH2.54-2Pin Power: 0.7W Speed: 6000RPM  Air flow: 7.85CFM  Noise:26dBA Bearing type: Dual ball Bearing  Cable Length: 20cm Or 8 inches  Life: 50000 hours  Weight:22g/pcs or 0.78oz

## Features

- 40x20mm size fan for replacing fans in inverter and storage equipmentcs such as PSU，battery charger, 3D printer, switches, NAS , DVRs etc
- The 40mm DC brushless fan operates at 12V, ideal for cooling electronic equipment. This compact 40x40x20 12V fan ensures efficient cooling for various electronics, making it a reliable choice for 12V cooling needs
- Dual ball bearing providing reliable performance for prolonged periods with a lifespan of 50,000 hours
- Rated Voltage:12V 0.05A; Speed: 6000RPM; Air flow: 7.85CFM; Noise:26dBA; Connecter: XH2.54-2Pin; Cable Length: 20cm Or 8 inche
- 1 Piece fan and mounting screws & nuts; Dimension: 40mm(L) x 40mm(W) x 20mm(H) / 1.58x1.58x0.79 in. per fan

## Product Details

- **Product dimensions:** 40L x 40W x 20H millimeters
- **Brand:** Wathai
- **Power connector type:** 2-Pin
- **Voltage:** 12 Volts (DC)
- **Cooling method:** fan cooling

## Images

![40mm x 20mm 12V Dual Ball Bearing DC Brushless Cooling Fan for 12 Volt PSU Replacment, DIY Small Electronic Equipment Cooling - Image 1](https://m.media-amazon.com/images/I/61hfGa4JKqL.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.sk/products/257612024-40mm-x-20mm-12v-dual-ball-bearing-dc-brushless-cooling](https://www.desertcart.sk/products/257612024-40mm-x-20mm-12v-dual-ball-bearing-dc-brushless-cooling)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-26*