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CORSAIR Nautilus 240 RS ARGB Liquid CPU Cooler – 240mm AIO – Low-Noise – Direct Motherboard Connection – Daisy-Chain – Intel LGA 1851/1700, AMD AM5/AM4 – 2X RS120 ARGB Fans Included – White
Corsair

CORSAIR Nautilus 240 RS ARGB Liquid CPU Cooler – 240mm AIO – Low-Noise – Direct Motherboard Connection – Daisy-Chain – Intel LGA 1851/1700, AMD AM5/AM4 – 2X RS120 ARGB Fans Included – White

4.6(3.7K+ reviews, all variants)
Amazon's Choiceentry$50-$99100+ bought in past month
#3 in Water Cooling Systems
wattage
15 watts
fan size
240mm
material
Aluminum, Plastic
connector
4-Pin
compatible
Desktop
cooling method
Water

Want the best price and purchase timing?

Our AI advisor analyzes real-time pricing across all channels to find you the best deal.

AI Verdict

A 240mm AIO with a 20 dBA pump and daisy-chainable ARGB fans for Intel LGA 1851/1700 and AMD AM5/AM4 builds.

Situational Fit

This 240mm AIO offers a 20 dBA pump and direct motherboard ARGB control, making it a straightforward cooling solution for many builds. However, reported fan and pump noise at higher RPMs and the 253-watt cooling limit mean it's not for the most demanding systems.

If you need more cooling headroom or quieter operation under heavy loads, look for 360mm AIOs with lower reported fan noise levels.

Regret Score™

Medium Risk

Lower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity

26/100
vs. 1,285 Power & Cooling we've analyzedSafer than 48%
Hidden Defects
11/35

Issues discovered after purchase

Achilles' Heel
0/25

Critically weak dimension

Expectation Gap
6/20

Amazon rating vs actual quality

Fit Risk
9/20

Chance this product isn't for you

BuyChoice Score
3.5

Pros

  • Pump operates at a whisper-quiet 20 dBA.
  • Convex cold plate with pre-applied thermal paste simplifies installation.
  • Daisy-chainable RS ARGB fans reduce cable clutter.
  • ARGB lighting connects directly to the motherboard, no iCUE software required.
  • Supports Intel LGA 1851/1700 and AMD AM5/AM4 sockets.
  • Rated to cool CPUs up to 253 watts.

Cons

  • Fan noise can be noticeable, described as a 'jet taking off,' above 30% RPM.
  • Some users report pump RPM exceeding the stated 2100 RPM, leading to high-pitched noise.
  • Fan cables might be too short for some case configurations.
  • No support for older Intel LGA1200 sockets.

Dimension Scores

Efficiency & Output7/10

Rated to cool CPUs up to 253 watts, keeping a Ryzen 9 9900X between 65-75°C under load.

Noise Level5/10

The pump operates at 20 dBA, but fans can become loud, described as a 'jet taking off,' above 30% RPM.

Build Quality6/10

Features aluminum and plastic construction with 'top-notch' appearance reported by users, but some mention a coolant smell.

Cable Management8/10

Daisy-chainable fans and direct motherboard ARGB connection significantly reduce wiring complexity.

Best For

  • Mid-range CPU builds needing efficient cooling up to 253 watts.
  • Users who prefer simplified ARGB wiring and direct motherboard control.
  • New PC builders due to pre-applied thermal paste and straightforward installation.
  • Systems where a 240mm radiator fits best.

Not Recommended For

  • Extreme overclockers pushing CPUs beyond 253 watts TDP.
  • Users with older Intel LGA1200 motherboards.
  • Builders prioritizing absolute silence under heavy load.

Watch Out For

  • Some users experienced pump RPMs up to 3000, exceeding the stated 2100 RPM max, creating a high-pitched 'bee' noise.
  • Fan noise becomes prominent, described as a 'jet taking off,' when fan speeds go above 30%.
  • Installation instructions were reported as missing or unclear regarding ARGB connections by some users.
  • A 'weird sweet smell' from the exhaust fans, attributed to coolant, was reported by one user.
  • Fan cables might be too short for certain system layouts, requiring careful routing.

Full Specifications

UPC840006687580
ASINB0DF79W2TS
BrandCorsair
ColorWhite
Voltage12 Volts
Wattage15 watts
MaterialAluminum, Plastic
Item Weight2.87 pounds
Noise Level36 Decibels
ManufacturerCorsair
Cooling MethodWater
Number of Items1
Item model numberCW-9060094-WW
Compatible DevicesDesktop
Product Dimensions10.87 x 4.72 x 1.06 inches
Computer Memory TypeDIMM
Power Connector Type4-Pin
Item Dimensions LxWxH10.87 x 4.72 x 1.06 inches
Global Trade Identification Number00840006687580

What Buyers Say

Many users appreciate the straightforward installation and the fact that the ARGB lighting connects directly to the motherboard without needing iCUE software. However, several reports indicate that the fans can get quite loud, sounding like a 'jet taking off,' when they spin up past 30% RPM. There are also concerns about the pump's actual RPM exceeding the advertised maximum, leading to a high-pitched noise. Despite these noise issues, the cooler is often praised for its ability to keep high-end CPUs like the Ryzen 9 9900X within a 65-75°C range.

“This thing cools my 7800x3d fine, but man, those fans are LOUD when they ramp up, and the pump makes this annoying high-pitched whine sometimes, thought it was supposed to be quiet!”

Common Praise

  • Keeps CPU temperatures around 65-75°C with a Ryzen 9 9900X.
  • Installation is easy due to pre-applied thermal paste and direct motherboard connections.
  • ARGB lighting connects directly to the motherboard, avoiding iCUE software.
  • Daisy-chaining fans simplifies cable routing.
  • Appearance and build quality are frequently described as 'top-notch'.

Common Complaints

  • Fans become loud, sounding like a 'jet taking off,' when exceeding 30% RPM.
  • Pump RPM can exceed the stated 2100 RPM, reaching up to 3000 RPM and causing a high-pitched noise.
  • Fan cables are sometimes too short for optimal routing in certain cases.
  • Some users reported a 'weird sweet smell' from the exhaust fans, possibly coolant.
  • Installation instructions were not always clear, especially for ARGB connections.

Ownership Tips

  • The 'whisper-quiet' 20 dBA pump noise is only accurate at low loads; under stress, the pump and fans can become audible.
  • While iCUE isn't needed, some users might initially try to use it, leading to confusion when it's not recognized.
  • The pre-applied thermal paste is convenient, but re-application might be needed if the cooler is removed for maintenance.
  • The daisy-chain feature genuinely cleans up wiring, but plan cable runs carefully as fan cables might be shorter than expected.
  • Monitoring pump RPM in BIOS is important, as some units report higher than advertised speeds.

Frequently Asked Questions

What CPU sockets does it support?

It supports Intel LGA 1851, LGA 1700, and AMD AM5, AM4 sockets.

Does it come with thermal paste?

Yes, thermal paste is pre-applied to the convex cold plate for easier installation.

Do I need a separate RGB controller?

No, the ARGB lighting connects directly to a compatible motherboard's +5V ARGB header, eliminating the need for a separate controller.

How noisy is the pump?

The pump is designed for low noise, operating at a whisper-quiet 20 dBA.

What is the cooling capacity?

This cooler is rated to handle CPUs with a thermal design power (TDP) of up to 253 watts.

Can I control the fan speed?

Yes, the RS120 ARGB fans support PWM control, allowing you to set fan speeds up to 2,100 RPM and offering a Zero RPM mode for quiet operation.

Buying Guide

When picking a CPU cooler, you're balancing how cool your CPU stays with how much noise your PC makes. AIOs like this one use liquid to move heat away from your CPU to a radiator, which then uses fans to dissipate that heat. You need to make sure the radiator size fits your case and that the cooler can handle your CPU's heat output, measured in watts.

240mm AIO

20 dBA pump noise

Daisy-Chain Connections

Convex Cold Plate with Pre-Applied Thermal Paste

Alternatives

If you have a high-end CPU that generates a lot of heat or you want near-silent operation under all conditions, look for AIOs with larger radiators (like 360mm) and specific fan models known for low noise at high RPMs.

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