---
product_id: 587945837
title: "Wathai 50mm x 15mm USB Blower Fan 5V 5015 Brushless Cooling Fans with Variable Speed Controller for Laptops, Helmets, and DIY Projects 2 Pack"
brand: "wathai"
price: "¥4781"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/587945837-wathai-50mm-x-15mm-usb-blower-fan-5v-5015-brushless
store_origin: JP
region: Japan
---

# 2.91 CFM airflow 5V USB powered 3500 RPM speed Wathai 50mm x 15mm USB Blower Fan 5V 5015 Brushless Cooling Fans with Variable Speed Controller for Laptops, Helmets, and DIY Projects 2 Pack

**Brand:** wathai
**Price:** ¥4781
**Availability:** ✅ In Stock

## Summary

> 💨 Stay cool, stay ahead—because your gear deserves the best breeze!

## Quick Answers

- **What is this?** Wathai 50mm x 15mm USB Blower Fan 5V 5015 Brushless Cooling Fans with Variable Speed Controller for Laptops, Helmets, and DIY Projects 2 Pack by wathai
- **How much does it cost?** ¥4781 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/587945837-wathai-50mm-x-15mm-usb-blower-fan-5v-5015-brushless)

## 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

- • **Compact Powerhouse:** Small 50mm size fits tight spaces without sacrificing airflow.
- • **Plug & Play Cooling:** USB powered for instant, hassle-free setup anywhere.
- • **Versatile Use Cases:** Perfect for laptops, helmets, 3D printers, and DIY projects.
- • **Long-Lasting Reliability:** Durable brushless motor with 35,000 hours lifespan.
- • **Whisper-Quiet Efficiency:** Operates at just 25.7 dBA—cooling without the noise.

## Overview

The Wathai 50mm x 15mm USB Blower Fan delivers powerful 2.91 CFM airflow at a whisper-quiet 25.7 dBA, powered by a 5V USB connection. Its compact design and 3500 RPM brushless motor make it ideal for laptops, helmets, 3D printers, and various DIY cooling needs, ensuring reliable performance with a 35,000-hour lifespan.

## Description

Full description not available

## Features

- Versatile Cooling Solution: 50mm USB fan is for 3D printers, humidifiers,aromatherapy, small squirrel cage , From electronics and personal use to small computer components, vivariums, and even RV refrigerators
- Small but Mighty: Squirrel cage fan with a compact and lightweight design, this micro 50mm blower fan is perfect for DIY cooling and tight spaces. Such as cool helmet
- Usb Fan Controller: Centrifugal fan simply plug into any standard USB port and start cooling. Compatible with phone chargers, laptops, and power banks
- Quick and Simple Installation: 5015 blower fan is easy to install with a size of 50mm L x 50mm W x 15mm H and mounting spacing of 2.24 in
- Powerful Performance: Rated Voltage: 5V | Bearing:Sleeve | Current:0.12A | Power:0.5W | Airflow:2.91 CFM | Static Pressure:0.45 In H2O | Speed: 3500RPM | Noise: 25.7 dBA | Lifespan: 35,000 hrs

## Product Details

- **Product Dimensions:** 2"L x 2"W x 0.6"H
- **Brand:** Wathai
- **Power Connector Type:** 4-Pin
- **Voltage:** 5 Volts (DC)
- **Cooling Method:** cooling
- **Compatible Devices:** Amplifier, Desktop, Gaming Console, Projector, Router
- **Noise Level:** 25.7 Decibels
- **Material:** Plastic
- **Maximum Rotational Speed:** 3500 RPM
- **Air Flow Capacity:** 2.91 Cubic Feet Per Minute

## Images

![Wathai 50mm x 15mm USB Blower Fan 5V 5015 Brushless Cooling Fans with Variable Speed Controller for Laptops, Helmets, and DIY Projects 2 Pack - Image 1](https://m.media-amazon.com/images/I/61NbV9qeCVL.jpg)
![Wathai 50mm x 15mm USB Blower Fan 5V 5015 Brushless Cooling Fans with Variable Speed Controller for Laptops, Helmets, and DIY Projects 2 Pack - Image 2](https://m.media-amazon.com/images/I/71XPXCz9QSL.jpg)
![Wathai 50mm x 15mm USB Blower Fan 5V 5015 Brushless Cooling Fans with Variable Speed Controller for Laptops, Helmets, and DIY Projects 2 Pack - Image 3](https://m.media-amazon.com/images/I/712OgrWGObL.jpg)
![Wathai 50mm x 15mm USB Blower Fan 5V 5015 Brushless Cooling Fans with Variable Speed Controller for Laptops, Helmets, and DIY Projects 2 Pack - Image 4](https://m.media-amazon.com/images/I/717YH3Uq0HL.jpg)
![Wathai 50mm x 15mm USB Blower Fan 5V 5015 Brushless Cooling Fans with Variable Speed Controller for Laptops, Helmets, and DIY Projects 2 Pack - Image 5](https://m.media-amazon.com/images/I/61-1wuCBcgL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.jp/products/587945837-wathai-50mm-x-15mm-usb-blower-fan-5v-5015-brushless](https://www.desertcart.jp/products/587945837-wathai-50mm-x-15mm-usb-blower-fan-5v-5015-brushless)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-31*