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CORSAIR Nautilus 240 RS LCD Liquid CPU Cooler – 2.1" IPS LCD Screen, 240mm AIO, Low-Noise, Daisy-Chain, Intel LGA 1851/1700, AMD AM5/AM4 – 2X RS120 Fans Included – Black
Corsair

CORSAIR Nautilus 240 RS LCD Liquid CPU Cooler – 2.1" IPS LCD Screen, 240mm AIO, Low-Noise, Daisy-Chain, Intel LGA 1851/1700, AMD AM5/AM4 – 2X RS120 Fans Included – Black

4.5(157 reviews, all variants)
Amazon's Choiceentry plus$100-$14950+ bought in past month
#12 in Water Cooling Systems
fan size
240mm
material
Metal, Plastic
connector
4-Pin
compatible
Desktop
cooling method
Water

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AI Verdict

This 240mm AIO with a 2.1" IPS LCD screen and 20 dBA pump offers low-noise cooling for modern Intel/AMD CPUs up to 253W TDP.

Situational Fit

This 240mm AIO is a solid choice if you're building with a modern Intel or AMD CPU and want the visual flair of a customizable 2.1" IPS LCD screen. Its 20 dBA pump and 253W TDP cooling capacity are competitive for its size, but fan noise under heavy load is a recurring user complaint.

If you need quieter operation under heavy CPU loads, look for AIOs with larger radiators (e.g., 360mm) or those specifically reviewed for lower fan noise at high RPMs.

Regret Score™

Medium Risk

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

34/100
vs. 1,285 Power & Cooling we've analyzedSafer than 25%
Hidden Defects
13/35

Issues discovered after purchase

Achilles' Heel
3/25

Critically weak dimension

Expectation Gap
9/20

Amazon rating vs actual quality

Fit Risk
9/20

Chance this product isn't for you

BuyChoice Score
3.2

Pros

  • The 2.1" IPS LCD screen allows for custom images, GIFs, or temperature displays, adding personalization to your build.
  • The pump operates at a whisper-quiet 20 dBA, minimizing system noise.
  • RS120 fans utilize AirGuide technology and Magnetic Dome bearings to deliver strong cooling with reduced noise.
  • Installation is simplified by a convex cold plate with pre-applied thermal paste and daisy-chained fan connections.
  • Supports a wide range of current CPU sockets including Intel LGA 1851/1700 and AMD AM5/AM4.
  • The cooler can manage CPUs with a Thermal Design Power (TDP) up to 253 watts, like the Ryzen 9 9900X, keeping temperatures around 65-75°C under load.

Cons

  • Some users report the pump can be audible, despite its 20 dBA rating.
  • Fans can become loud, described by one user as sounding like a 'jet taking off' past 30% RPM.
  • The cooler lacks support for older Intel LGA1200 sockets, limiting compatibility for some existing systems.
  • While the LCD is customizable, the iCUE software, which enables full customization, has been described as buggy and RAM-hungry by users of other Corsair products.

Dimension Scores

Efficiency & Output7/10

The cooler is rated to handle CPUs with a TDP up to 253 watts, keeping high-end processors like the Ryzen 9 9900X at 65-75°C under load.

Noise Level4/10

While the pump is rated at 20 dBA, users report both the pump being audible and the fans becoming very loud ('jet taking off') above 30% RPM.

Build Quality7/10

It features a metal and aluminum radiator construction, high static pressure fans with Magnetic Dome bearings, and braided tubing.

Cable Management8/10

The fans support daisy-chaining, and the unit plugs directly into the motherboard without needing an extra controller, simplifying wiring.

Best For

  • PC builders needing a 240mm AIO for Intel LGA 1851/1700 or AMD AM5/AM4 platforms.
  • Users prioritizing a customizable 2.1" IPS LCD screen on their CPU cooler for system monitoring or aesthetics.
  • Systems requiring cooling for CPUs up to 253W TDP where low pump noise is a factor.

Not Recommended For

  • Systems with older Intel LGA1200 or 10th/11th generation Intel CPUs due to incompatibility.
  • Users highly sensitive to fan noise under load, as fans can become loud at higher RPMs.
  • Budget-focused builds where maximum cooling performance per dollar is the sole priority, as some users perceive other options offering better value.

Watch Out For

  • The pump, despite its 20 dBA specification, has been reported by some users to be audible during operation.
  • Fan noise can be significant; users have noted the fans sound like a 'jet taking off' when operating above 30% RPM.
  • Compatibility is limited to newer sockets; it does not support older Intel LGA1200 or 10th/11th generation Intel CPUs.
  • While the cooler can function without iCUE, full customization of the 2.1" IPS LCD screen requires the software, which some users find buggy and resource-intensive.

Full Specifications

UPC840440400332
ASINB0FGDHFMDN
BrandCorsair
ColorBlack
LanguageEnglish, English, English, English, English
MaterialMetal, Plastic
Item Weight2.69 pounds
Noise Level20 Decibels
ManufacturerCorsair
Cooling MethodWater
Number of Items1
Item model numberCW-9061031-WW
Compatible DevicesDesktop
Product Dimensions10.87 x 4.72 x 1.06 inches
Power Connector Type4-Pin
Item Dimensions LxWxH10.87 x 4.72 x 1.06 inches

What Buyers Say

The biggest takeaway from user feedback is the mixed experience with noise; while the pump is advertised as quiet, some users found it audible, and the fans can get seriously loud at higher speeds. On the flip side, the 2.1" IPS LCD screen is a definite highlight, letting you personalize your build with GIFs or system stats. Installation seems straightforward, thanks to pre-applied thermal paste and daisy-chainable fans, which is a win for anyone dreading cable clutter. Cooling performance for modern, demanding CPUs is generally considered effective, handling up to 253W TDP.

“Honestly, it cools my 7800X3D fine, but those fans when gaming? Sounds like a mini jet engine taking off in my room, kinda ruins the quiet build vibe I was going for.”

Common Praise

  • The 2.1" IPS LCD screen is a standout feature for customization and displaying system info.
  • Cooling performance is effective for high-TDP CPUs, keeping temperatures in check under load.
  • Installation is simplified by pre-applied thermal paste and daisy-chain fan connections.
  • The pump's low 20 dBA rating contributes to a quieter system at idle.
  • Direct motherboard connection means no extra controllers are needed, reducing clutter.

Common Complaints

  • Fan noise at higher RPMs is a significant issue, with users describing it as very loud.
  • The pump can be audible, contradicting its low dBA specification.
  • iCUE software, required for full LCD customization, is sometimes reported as buggy and resource-heavy.
  • Lack of compatibility with older Intel LGA1200 sockets limits upgrade options for some users.

Ownership Tips

  • The LCD screen is a fun touch for showing off, but getting it set up exactly how you want might take some fiddling with iCUE.
  • You might want to set up a custom fan curve to keep the noise down, especially if you're sensitive to high-pitched fan whine.
  • The pre-applied thermal paste is convenient for a quick build, but for long-term performance, some users might prefer to re-apply their own.
  • The daisy-chaining for the fans is a lifesaver for cable management, making the build process much cleaner.

Frequently Asked Questions

What CPU sockets is this cooler compatible with?

It's compatible with Intel LGA 1851, LGA 1700, and AMD AM5, AM4 sockets.

Does this cooler require Corsair's iCUE software?

While the cooler can function without iCUE, you'll need the software to fully customize the 2.1" IPS LCD screen with GIFs, images, or specific temperature displays.

How loud is the pump?

The pump is rated for a whisper-quiet 20 dBA, though some users have reported it being audible.

Does it come with thermal paste applied?

Yes, it features a convex cold plate with pre-applied thermal paste for easier installation.

Are the fans RGB?

No, this specific model includes 'Black' RS120 fans, meaning they do not have RGB lighting. The customizable element is the 2.1" IPS LCD screen on the pump.

Buying Guide

When you're looking at liquid CPU coolers like this, you're essentially buying a self-contained cooling loop for your processor. The '240mm' refers to the radiator size, which determines how much heat it can dissipate. A bigger radiator generally means better cooling, but also takes up more space in your case. The fans push air through that radiator, and their noise levels are a big deal, especially if you want a quiet PC. The LCD screen here is a bonus for aesthetics and quick info, but it won't directly improve cooling.

240mm Radiator

This is the size of the heat exchanger. A 240mm radiator is a common size that fits in many cases and offers a good balance of cooling performance for most mainstream to high-end CPUs, but it's not the absolute largest available.

2.1" IPS LCD Screen

This isn't about cooling performance, but about personalization. It lets you display system temperatures, custom images, or animated GIFs directly on your CPU block, turning your cooler into a visual centerpiece.

20 dBA Pump Noise

Decibels (dBA) measure sound intensity. A lower number means quieter operation. 20 dBA is considered very quiet, meaning the pump itself should be barely audible, though other components like fans can still contribute to overall system noise.

253W TDP Cooling Capacity

TDP (Thermal Design Power) indicates the maximum heat a CPU can generate. This cooler can effectively dissipate up to 253 watts of heat, making it suitable for powerful processors without them overheating.

Alternatives

If this cooler doesn't quite fit, consider a 360mm AIO for increased cooling capacity, or look for models specifically reviewed for lower fan noise at high RPMs if quiet operation under load is critical. If the LCD screen isn't a priority, a non-LCD AIO or a high-performance air cooler might offer similar cooling for less money.

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