---
product_id: 406528110
title: "Kunai Hydraulic 140MM aRGB PC Fan: Quiet, Powerful aRGB Fans - PWM Fan Controller Support & Connect Up to 8 Fans - Powered by Razer Chroma RGB - 3 Fans"
brand: "razer"
price: "R4657"
currency: ZAR
in_stock: true
reviews_count: 12
category: "Razer"
url: https://www.desertcart.co.za/products/406528110-kunai-hydraulic-140mm-argb-pc-fan-quiet-powerful-argb-fans
store_origin: ZA
region: South Africa
---

# 16.8M colors with Razer Chroma 81 CFM max airflow 15-30 dBA ultra-quiet Kunai Hydraulic 140MM aRGB PC Fan: Quiet, Powerful aRGB Fans - PWM Fan Controller Support & Connect Up to 8 Fans - Powered by Razer Chroma RGB - 3 Fans

**Brand:** razer
**Price:** R4657
**Availability:** ✅ In Stock

## Summary

> 🌪️ Cool your rig, light your game — be the envy of every battlestation.

## Quick Answers

- **What is this?** Kunai Hydraulic 140MM aRGB PC Fan: Quiet, Powerful aRGB Fans - PWM Fan Controller Support & Connect Up to 8 Fans - Powered by Razer Chroma RGB - 3 Fans by razer
- **How much does it cost?** R4657 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/406528110-kunai-hydraulic-140mm-argb-pc-fan-quiet-powerful-argb-fans)

## Best For

- razer enthusiasts

## Why This Product

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

## Key Features

- • **Stealthy Cooling Power:** Hydraulic bearing tech inspired by military aircraft ensures whisper-quiet, efficient airflow up to 81 CFM.
- • **Seamless Multi-Fan Sync:** Daisy chain up to 8 fans with PWM controller support for ultimate airflow and synchronized lighting control.
- • **Limitless Lighting Vibes:** Customize with 16.8 million colors and dynamic effects powered by Razer Chroma RGB for immersive gaming aesthetics.
- • **Adaptive Fan Speed Control:** Fine-tune your cooling with PWM fan controller compatibility to balance silence and performance effortlessly.
- • **Premium Build Meets Bold Design:** Solid copper materials and robust construction deliver durability while elevating your PC’s visual impact.

## Overview

The Razer Kunai Hydraulic 140MM aRGB PC Fan trio combines military-inspired hydraulic bearing technology with powerful airflow (up to 81 CFM) and ultra-quiet operation (15-30 dBA). Featuring full Razer Chroma RGB integration, these fans offer 16.8 million customizable colors and effects, controllable via Razer Synapse. Daisy chain up to 8 fans with PWM support for tailored cooling and synchronized lighting, making it a premium choice for gamers and professionals seeking both performance and style.

## Description

Get form and function that blows you away. Meet the Razer Kunai hydraulic bearing performance aRGB fans powered by Razer Chroma™ with fan blade technology inspired by elite military aircraft for stealthy, efficient cooling, and addressable LEDs for unique case designs.

Review: Excellent color and build quality - The RGB is absolutely beautiful and I love how vibrant the colors are. Then again, I do particularly like Razer products and wanted to give their pc components a chance. When the pc is idling, it’s very quiet. The build quality is solid and the fans are sturdy. As for installation, it wasn’t easy but it wasn’t hard either. The daisy chaining was the hardest part. For those looking to get better performance for their money, these are not the fans to buy. Not saying they don’t work well, but they are very expensive. Other than that I have no complaints.
Review: Perfect fan for a RAZER fan - Super bright and clean glow. Looks perfect in my razer case.

## Features

- Quiet, Powerful: Cool your PC with high airflow aRGB fans packed with LEDs and lighting effects powered by Razer Chroma RGB
- Connect Up to 8 Fans: Daisy chain and connect up to 8 Razer Kunai fans to Pulse Width Modulation and aRGB controllers to create immersive lighting effects - supported by Razer Synapse software for ultimate customization
- PWM Fan Controller Support: Whether you need maximum airflow to cool your PC or run quietly at lower RPMs, our Pulse Width Modulation fan controller allows you to conveniently adjust fan speed based on your needs (PWM fan sold separately)
- Powered by Razer Chroma RGB: Unlock ultimate aRGB customization with 16.8 million colors, light patterns, and effects which react to your gameplay - get the world’s largest lighting ecosystem and control it from one platform
- Cooling​: 500-1600 RPM​/ Airflow​: 34.48-81 CFM​
- Noise: 15-30 dBA​/Voltage: 12V=0.40A (140mm)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09JRZ7KGS |
| Air Flow Capacity | 81 Cubic Feet Per Minute |
| Best Sellers Rank | #697 in Computer Case Fans |
| Brand | Razer |
| Compatible Devices | Desktop |
| Cooling Method | Fan |
| Date First Available | October 21, 2021 |
| Item Weight | 1.54 pounds |
| Item model number | RC21-01810200-R3M1 |
| Manufacturer | Razer |
| Material | Copper |
| Maximum Rotational Speed | 1600 RPM |
| Noise Level | 15 Decibels |
| Number of Items | 3 |
| Power Connector Type | 4-Pin |
| Product Dimensions | 6.69"L x 6.1"W x 2.64"H |
| UPC | 810056145835 |
| Voltage | 12 Volts |
| Wattage | 3.6 watts |

## Product Details

- **Brand:** Razer
- **Compatible Devices:** Desktop
- **Cooling Method:** Fan
- **Material:** Copper
- **Maximum Rotational Speed:** 1600 RPM
- **Noise Level:** 15 Decibels
- **Power Connector Type:** 4-Pin
- **Product Dimensions:** 6.69"L x 6.1"W x 2.64"H
- **Voltage:** 12 Volts
- **Wattage:** 3.6 watts

## Images

![Kunai Hydraulic 140MM aRGB PC Fan: Quiet, Powerful aRGB Fans - PWM Fan Controller Support & Connect Up to 8 Fans - Powered by Razer Chroma RGB - 3 Fans - Image 1](https://m.media-amazon.com/images/I/61qmo+sKaBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent color and build quality
*by H***N on August 5, 2025*

The RGB is absolutely beautiful and I love how vibrant the colors are. Then again, I do particularly like Razer products and wanted to give their pc components a chance. When the pc is idling, it’s very quiet. The build quality is solid and the fans are sturdy. As for installation, it wasn’t easy but it wasn’t hard either. The daisy chaining was the hardest part. For those looking to get better performance for their money, these are not the fans to buy. Not saying they don’t work well, but they are very expensive. Other than that I have no complaints.

### ⭐⭐⭐⭐⭐ Perfect fan for a RAZER fan
*by M***L on April 12, 2025*

Super bright and clean glow. Looks perfect in my razer case.

### ⭐⭐⭐⭐⭐ Your buying a name and quality nothing else.
*by K***F on April 26, 2022*

These four new razor fans that I installed were able to bring overall temps down about 7°C and and my GP temperatures from 70°C I’m running intense games to 65°C. I honestly don’t mind the fans noise level at all. I don’t think they’re really that noisy. If you notice my fan on the far left not all the RGB‘s are lit up and that is due to them all being daisychain together and the last one on the left not receiving enough voltage I assume. I I really like that there’s RGB on both sides. Honestly I think that razor products give you Good quality for the most part. But I think any fans can do the same thing that these are doing and if you’re looking at these are just buy the brand name in the Cool light thatcome with them. So if you’re looking for value this isn’t the spot but if you’re looking for your razor fan boy stuff here you go. Warning, if you don’t have an RGB controller or a fan controller you’re going to have to find a way to do that either in your bios or the fans and control them by temperatures or you’re gonna have to get lucky like I didn’t have a GPU that has an RGB controller. Just warning you that there’s three separate wires that need to be plugged into three different places on these freaking fans it’s a mess. Not easy to instal. No value for money. Low noise level. Why 5 stars, because I’m the target consumer for the product. I like razer.

## Frequently Bought Together

- Razer Kunai Hydraulic 140MM aRGB PC Fan: Quiet, Powerful aRGB Fans - PWM Fan Controller Support & Connect Up to 8 Fans - Powered by Razer Chroma RGB - 3 Fans
- Razer PWM PC Fan Controller: Connects Up to 8 Fans - Custom Fan Curve Profiles - Convenient Fan Monitoring - Thin Profile
- Razer Hanbo Chroma RGB All in One Liquid Cooler aRGB Pump Cap: AIO Design - Quiet, Powerful aRGB Fans - PWM Fan Controller Support - Intel LGA 115X Series, 2011, 1200, 1700, AM5 Compatible - 360MM

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-03*