---
product_id: 453544162
title: "Coolerguys 40mm (40x40x20) 12v Ultra Quiet Fan CG4020L12S for Pi Devices, 3D Printers, Arduino"
brand: "coolerguys"
price: "40190CFA"
currency: XOF
in_stock: false
reviews_count: 5
category: "Coolerguys"
url: https://www.desertcart.sn/products/453544162-coolerguys-40mm-40x40x20-12v-ultra-quiet-fan-cg4020l12s-for-pi
store_origin: SN
region: Senegal
---

# Coolerguys 40mm (40x40x20) 12v Ultra Quiet Fan CG4020L12S for Pi Devices, 3D Printers, Arduino

**Brand:** coolerguys
**Price:** 40190CFA
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Coolerguys 40mm (40x40x20) 12v Ultra Quiet Fan CG4020L12S for Pi Devices, 3D Printers, Arduino by coolerguys
- **How much does it cost?** 40190CFA with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/453544162-coolerguys-40mm-40x40x20-12v-ultra-quiet-fan-cg4020l12s-for-pi)

## Best For

- coolerguys enthusiasts

## Why This Product

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

## Description

PRODUCT SPECIFICATION: DC Fan Size: 40x40x20mm Bearing Type: Sleeve Bearing Fan Speed: 3500 RPM (±10%) RPM Noise Level: 19.50 DBA Rated Voltage: 12 Volt Max Airflow: 4.9 CFM Rated Current: 0.03A MTBF: 40,000 hours Certifications: ROHS, CE

Review: I bought these to use a part cooling fans for my 3Dprinter. They are very quiet, almost completely silent. However, they problem is that they just don't move any air, and that makes them useless as part cooling fans.
Review: Picked this up to get a better hotend cooling fan on my converted Anycubic Mega X. Because Anycubic is no longer supporting the Mega X, I converted the hotend and hotend carriage to the Ender-3 style. I printed a shroud for the conversion and after buying a new carriage I discovered the print I made was designed for a 4020 cooling fan instead of the 4010 stock sized fan. As Ender printers use a 24v power supply, I had already bought a 4010 12v kit to work with the Mega X power supply. This fan replaces that 12v 4010 fan and works fantastically. This fan is going in my saved parts so that I can replace it when the fan wears out.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07V4GGPW3 |
| Batteries Included | No |
| Batteries Required | No |
| Brand | Coolerguys |
| Compatible Devices | Printer |
| Cooling Method | Air |
| Country of Origin | USA |
| Customer Reviews | 4.3 4.3 out of 5 stars (284) |
| Date First Available | 13 February 2020 |
| Item Dimensions LxWxH | 40 x 20 x 40 Millimeters |
| Item Weight | 100 g |
| Item model number | CGXXXXL12S |
| Manufacturer | coolerguys |
| Maximum Rotational Speed | 3500 RPM |
| Model | CGXXXXL12S |
| Net Quantity | 1.0 Count |
| Noise Level | 19.5 Decibels |
| Power Connector Type | 3-Pin |
| Product Dimensions | 4 x 2 x 4 cm; 100 g |
| UPC | 840556071631 |
| Voltage | 12 Volts |

## Product Details

- **Brand:** Coolerguys
- **Compatible Devices:** Printer
- **Cooling Method:** Air
- **Power Connector Type:** 3-Pin
- **Voltage:** 12 Volts

## Images

![Coolerguys 40mm (40x40x20) 12v Ultra Quiet Fan CG4020L12S for Pi Devices, 3D Printers, Arduino - Image 1](https://m.media-amazon.com/images/I/21idaCxF3DL.jpg)
![Coolerguys 40mm (40x40x20) 12v Ultra Quiet Fan CG4020L12S for Pi Devices, 3D Printers, Arduino - Image 2](https://m.media-amazon.com/images/I/31-RuOXbsjL.jpg)
![Coolerguys 40mm (40x40x20) 12v Ultra Quiet Fan CG4020L12S for Pi Devices, 3D Printers, Arduino - Image 3](https://m.media-amazon.com/images/I/41H7XK7mqCL.jpg)
![Coolerguys 40mm (40x40x20) 12v Ultra Quiet Fan CG4020L12S for Pi Devices, 3D Printers, Arduino - Image 4](https://m.media-amazon.com/images/I/714-zWL0FJL.jpg)

## Customer Reviews

### ⭐⭐ Review
*by J***N on 24 December 2020*

I bought these to use a part cooling fans for my 3Dprinter. They are very quiet, almost completely silent. However, they problem is that they just don't move any air, and that makes them useless as part cooling fans.

### ⭐⭐⭐⭐⭐ Review
*by D***M on 20 April 2023*

Picked this up to get a better hotend cooling fan on my converted Anycubic Mega X. Because Anycubic is no longer supporting the Mega X, I converted the hotend and hotend carriage to the Ender-3 style. I printed a shroud for the conversion and after buying a new carriage I discovered the print I made was designed for a 4020 cooling fan instead of the 4010 stock sized fan. As Ender printers use a 24v power supply, I had already bought a 4010 12v kit to work with the Mega X power supply. This fan replaces that 12v 4010 fan and works fantastically. This fan is going in my saved parts so that I can replace it when the fan wears out.

### ⭐⭐⭐⭐⭐ Review
*by Y***R on 24 August 2025*

Very quiet and powerful

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**Shop now:** [https://www.desertcart.sn/products/453544162-coolerguys-40mm-40x40x20-12v-ultra-quiet-fan-cg4020l12s-for-pi](https://www.desertcart.sn/products/453544162-coolerguys-40mm-40x40x20-12v-ultra-quiet-fan-cg4020l12s-for-pi)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-07*