---
product_id: 258712679
title: "120mm Fan 120mm x 25mm 4Pin 12V DC Brushless Computer Case Cooling Fan"
brand: "wathai"
price: "¥7178"
currency: JPY
in_stock: true
reviews_count: 5
category: "Wathai"
url: https://www.desertcart.jp/products/258712679-120mm-fan-120mm-x-25mm-4pin-12v-dc-brushless-computer
store_origin: JP
region: Japan
---

# 12V Power Supply 35,000+ hrs Sleeve Bearing Life 83 CFM Airflow 120mm Fan 120mm x 25mm 4Pin 12V DC Brushless Computer Case Cooling Fan

**Brand:** wathai
**Price:** ¥7178
**Availability:** ✅ In Stock

## Summary

> 🌬️ Stay Cool, Stay Ahead — Because Your Build Deserves the Best

## Quick Answers

- **What is this?** 120mm Fan 120mm x 25mm 4Pin 12V DC Brushless Computer Case Cooling Fan by wathai
- **How much does it cost?** ¥7178 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/258712679-120mm-fan-120mm-x-25mm-4pin-12v-dc-brushless-computer)

## 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

- • **Metal Grill Protection:** Robust fan guard prevents debris intrusion, safeguarding your investment and performance.
- • **Powerful 12V Performance:** Delivers consistent, high-voltage airflow to keep your rig cool under pressure.
- • **Optimized 4-Pin PWM Control:** Precision speed modulation for efficient cooling and noise management.
- • **Ultra-Durable Sleeve Bearings:** Engineered for longevity with 35,000+ hours of whisper-quiet operation.
- • **High Airflow & Static Pressure:** 83 CFM airflow at 2500 RPM ensures your CPU and GPU stay chill during intense workloads.

## Overview

The Wathai 120mm 4-Pin Brushless Cooling Fan offers a powerful 12V DC operation with 83 CFM airflow and a quiet 35dBA noise level. Featuring ultra-durable sleeve bearings rated for over 35,000 hours, it ensures long-lasting, efficient heat dissipation for gaming PCs, servers, and mining rigs. Included metal grills protect fan blades from debris, making it a reliable upgrade for any high-performance computer chassis.

## Description

Package include: 2 Piece fan include fan grill and mounting screws & nuts Rated Voltage:12V 0.25A Bearing type: Sleeve Bearing Speed: 2500RPM Air flow: 83CFM Noise:35dBA Connecter: 4-Pin Cable Length: 28cm Or 11 inches Size:120x120x25mm or 4.72x4.72x1 inches Weight:112g/pcs

Review: I needed 4-pin fans for a PC build - now here I am a few months later looking for quieter ones. (Update) At full speed, the fans reach 2560 - 2580 RPM (Spec says 2500) But the blade design isn't allowing for maximum air movement - so they are making more noise than they should be Oddly enough - I think the airflow direction arrows are missing? This is really a bad show in my opinion. I may try to lift them off of the case grill as this could be causing air friction. Update - The manufacturer reached out and offered a refund, which I declined. Nothing 'wrong' with these fans, they just need some updating / fine tuning.
Review: The fan is okay I would rather have a quieter fan, but it produces good airflow which made me inclined to keep it.

## Features

- 12V Power Supply Fan: This 120mm fan is compatible with all computer cases, including PC air cooling fans . Its powerful airflow creates a continuous convection air environment inside the chassis, effectively reducing the ambient temperature of the case. The fan keeps graphics cards, CPUs, and electronic components from overheating by providing efficient heat dissipation.
- Efficient Cooling: This fan features a unique circulating oil supply circuit and ultra-durable hydrodynamic bearings, and it can absorb and preserve the lubricant. With a Sleeve bearing life of over 35,000 hours, this fan is designed for long-lasting performance.
- 4PIN Fan: Connector: 4PIN; (+): Red Wire ; (-): Black Wire. FG function：Yellow Wire; PWM: Blue Wire; High airflow static pressure fan designed for projects that requires cooling or ventilation; or as a replacement fan for various products such as antminer case , gaming PC and mining machine, server CPU Case, chassis.
- Metal Grill: package includes a 2-pack of fans and with a metal protective net per fan to prevent foreign objects from being involved and protect the normal operation of the fan blades, ensuring long-lasting performance.
- 120mm Fan: Rated Voltage:12V 0.25A | Speed: 2500RPM | Air flow: 83CFM | Noise:35dBA | Air Pressure (In H2O): 0.18

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MDJTX5Y |
| Item model number | 8541606357 |
| Manufacturer | Wathai |
| Product Dimensions | 12 x 12 x 2.5 cm; 199.58 g |

## Product Details

- **Brand:** Wathai
- **Power connector type:** 4-Pin
- **Product dimensions:** 12L x 12W x 2.5H centimeters
- **Voltage:** 12 Volts (DC)
- **Wattage:** 1.5 watts

## Images

![120mm Fan 120mm x 25mm 4Pin 12V DC Brushless Computer Case Cooling Fan - Image 1](https://m.media-amazon.com/images/I/81fFzdNeZbL.jpg)

## Questions & Answers

**Q: Is this fan UL compliance?**
A: Not sure as it is a 12Vdc fan. I purchased one of these to circulate cool air thru my "inter cooler" I built to cool the inside of my car while it is sitting out in a parking lot. That way I don't have to get into a hot car to drive home. FYI, it is powered by a  solar panel.

**Q: Do I have to get a thermostat or speed control or can I just wire them up to a 12v lead and ground? Im using in a car audio setup to cool amplifiers??**
A: Yes, you can using in a car audio setup to cool amplifiers.

**Q: UL compliance?**
A: Great fan, still working just great.

**Q: Does the fan have an automated temperature shut off?**
A: No those fans always run constant that’s what you want when the pc is running keep it cooled

## Customer Reviews

### ⭐⭐⭐ Review
*by G***R on 12 April 2024*

I needed 4-pin fans for a PC build - now here I am a few months later looking for quieter ones. (Update) At full speed, the fans reach 2560 - 2580 RPM (Spec says 2500) But the blade design isn't allowing for maximum air movement - so they are making more noise than they should be Oddly enough - I think the airflow direction arrows are missing? This is really a bad show in my opinion. I may try to lift them off of the case grill as this could be causing air friction. Update - The manufacturer reached out and offered a refund, which I declined. Nothing 'wrong' with these fans, they just need some updating / fine tuning.

### ⭐⭐⭐⭐ Review
*by H***N on 16 August 2019*

The fan is okay I would rather have a quieter fan, but it produces good airflow which made me inclined to keep it.

### ⭐⭐⭐⭐⭐ Review
*by P***T on 29 July 2020*

It was a perfect replacement case fan. Came with everything you need to install it and also came very quickly. The power cord was a bit too short, but i made it work.

## Frequently Bought Together

- Wathai 120mm x 25mm 4Pin 12V Computer Case Fan DC Brushless Cooling Fan High Speed Replacement for Desktop PCs Case, AIO GPU Coolers
- Wathai 80mm x 25mm PC Computer Case Fan PWM 12V 4Pin Fan High Static Pressure for Server Box Enclosure CPU Cooler Cooling

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-26*