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Thermaltake TH420 V2 Ultra ARGB Sync/AlO Liquid Cooler/ARGB Fan 140 * 3/PWM 500~1800rpm/Water Block 2.1" LCD/White, CL-W407-PL14SW-A
Thermaltake

Thermaltake TH420 V2 Ultra ARGB Sync/AlO Liquid Cooler/ARGB Fan 140 * 3/PWM 500~1800rpm/Water Block 2.1" LCD/White, CL-W407-PL14SW-A

4.2(1.7K+ reviews, all variants)
Amazon's Choicemid range$150-$299
#35 in Water Cooling Systems
wattage
10 watts
material
Aluminum, Tube Material : Rubber, Water Block Material : Copper
connector
4-pin Molex
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

This 420mm AIO with a 2.1-inch 480x480 LCD and three 140mm ARGB fans is for high-end builds needing serious cooling and visual flair.

Strong Fit

This AIO is a strong fit for high-performance desktop systems with ample case space, offering substantial cooling capacity with its 420mm radiator and 140mm fans. The 2.1-inch LCD display caters to users wanting personalized aesthetics and system monitoring.

If a 420mm radiator is too large for your chassis, consider a 360mm or 280mm AIO with similar fan specifications for better case compatibility.

Regret Score™

Low Risk

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

19/100
vs. 1,285 Power & Cooling we've analyzedSafer than 78%
Hidden Defects
12/35

Issues discovered after purchase

Achilles' Heel
0/25

Critically weak dimension

Expectation Gap
3/20

Amazon rating vs actual quality

Fit Risk
4/20

Chance this product isn't for you

BuyChoice Score
3.7

Pros

  • The 420mm aluminum radiator and copper base plate provide substantial heat conductivity for high-performance CPUs.
  • Features a 2.1-inch 480x480 resolution LCD display that can show 16.8M color videos, photos, and real-time system information.
  • Includes three 140mm CT140 ARGB fans, each delivering 84.32 CFM airflow and 3.02 mm-H2O static pressure at 1800 RPM.
  • Supports synchronization with motherboard RGB software like ASUS Aura Sync, GIGABYTE RGB Fusion, MSI Mystic Light Sync, and ASRock Polychrome.
  • Compatible with a wide range of Intel (LGA 2066/2011-3/2011/1700/1200/1156/1155/1151/1150) and AMD (AM5/AM4/AM3+/AM3/AM2+/AM2/FM2/FM1) sockets.

Cons

  • The 420mm radiator requires a medium to large chassis, limiting compatibility with smaller PC cases.
  • Requires Thermaltake's TT RGB Plus 2.0 Software for full customization of the LCD display and ARGB lighting.
  • The CT140 ARGB fans produce a noise level of 34.7 dB-A at their maximum 1800 RPM, which can be noticeable.
  • The pump head cannot be physically rotated, though the LCD display's orientation can be adjusted via software.

Dimension Scores

Efficiency & Output9/10

The 420mm radiator, copper base plate, and three 140mm fans with 84.32 CFM airflow and 3.02 mm-H2O static pressure provide substantial cooling capacity for high-end CPUs.

Noise Level6/10

The fans produce 34.7 dB-A at their maximum 1800 RPM, which is average for high-performance 140mm fans but can be audible under load.

Build Quality7/10

Constructed with an aluminum radiator, copper water block, rubber tubing, and hydraulic bearing fans, indicating a durable design.

Cable Management5/10

Standard AIO cabling is present; without specific magnetic daisy-chaining features for this model, it offers average cable routing complexity.

Best For

  • Enthusiast PC builders running high-TDP Intel or AMD CPUs, especially if overclocking.
  • Users with large PC cases capable of accommodating a 420mm radiator.
  • Custom PC builds where a customizable LCD display and extensive ARGB lighting are desired aesthetics.

Not Recommended For

  • Small form factor (SFF) PC builds due to the large 420mm radiator size.
  • Budget-focused system builders, as its features place it in a mid-range price band.
  • Users who prefer minimal software installations for hardware control.

Watch Out For

  • You need to verify your PC case has sufficient clearance for a 456 x 139 x 27 mm radiator plus three 140mm fans; many standard cases won't fit a 420mm AIO.
  • The 34.7 dB-A noise level from the CT140 ARGB fans at 1800 RPM might be too loud for users prioritizing silent operation.
  • Customizing the 2.1-inch LCD display and ARGB lighting requires Thermaltake's TT RGB Plus 2.0 Software, adding another software layer to your system.
  • While the LCD orientation is software adjustable, the pump block itself does not physically rotate, which can limit mounting flexibility for some users.

Full Specifications

UPC841163090404
ASINB0CHN6MYZ4
BrandThermaltake
Voltage1
Wattage10 watts
MaterialAluminum, Tube Material : Rubber, Water Block Material : Copper
Item Weight6 pounds
Noise Level34.7 Decibels
ManufacturerThermaltake
Cooling MethodWater
Number of Items1
Air Flow Capacity253 Cubic Feet Per Minute
Item model numberCLW407PL14SWA
Compatible DevicesDesktop
Product Dimensions5.47"W x 17.95"H
Power Connector Type4-pin Molex
Maximum Rotational Speed3000 RPM

What Buyers Say

Users frequently highlight the Thermaltake TH420 V2 Ultra ARGB's ability to keep high-end CPUs cool, with some reporting significantly lower temperatures than expected for a 420mm AIO. The customizable 2.1-inch LCD display on the pump head is a major draw, allowing for personalized aesthetics and system monitoring. However, the sheer size of the 420mm radiator is a recurring point of concern, requiring careful case compatibility checks. Software dependency for full functionality is also mentioned, along with the potential for fan noise at higher speeds.

“Man, this thing keeps my i9 frosty, and that little screen is just too cool for showing off my GIFs, but seriously, measure your case twice before buying this monster!”

Common Praise

  • The 420mm radiator provides exceptional cooling performance, even for demanding CPUs like the Intel Core i9-14900K.
  • The 2.1-inch 480x480 resolution LCD display offers extensive customization for videos, images, and system stats.
  • The ARGB lighting on the CT140 fans integrates well with motherboard sync software, creating a cohesive look.
  • Installation is straightforward for those with compatible large cases.

Common Complaints

  • The large 420mm radiator doesn't fit in many common PC cases, necessitating a specific large chassis.
  • Reliance on Thermaltake's TT RGB Plus 2.0 software for LCD and ARGB control can be cumbersome for some users.
  • The 140mm fans can get loud at their maximum 1800 RPM, reaching 34.7 dB-A.
  • The pump head lacks physical rotation, which can make orienting the LCD screen tricky without software adjustment.

Ownership Tips

  • You'll definitely want to spend time optimizing fan curves in the TT RGB Plus 2.0 software to balance cooling and noise levels.
  • The LCD display is a conversation starter, but setting up custom content takes a bit of fiddling with the software.
  • Ensure your motherboard has enough USB headers for the AIO's internal connections, especially if you have other USB devices.
  • The sheer weight and size of the 420mm radiator and fans can make installation a two-person job in some cases.

Frequently Asked Questions

What CPU sockets are compatible with this cooler?

It's compatible with Intel LGA 2066/2011-3/2011/1700/1200/1156/1155/1151/1150 and AMD AM5/AM4/AM3+/AM3/AM2+/AM2/FM2/FM1 sockets.

Can the LCD display be customized?

Yes, the 2.1-inch 480x480 resolution LCD display is highly customizable. You can show 16.8M color videos, photos, real-time system information, local time, and weather.

What software is needed to control the cooler's features?

You'll need Thermaltake's TT RGB Plus 2.0 Software to control the LCD display and ARGB lighting effects for the Ultra Series products.

What are the specifications of the included fans?

It comes with three CT140 ARGB fans that operate between 500-1800 RPM, providing 84.32 CFM airflow and 3.02 mm-H2O static pressure, with a noise level of 34.7 dB-A at max speed.

Is the pump head rotatable for different mounting orientations?

The pump head itself does not physically rotate, but the orientation of the 2.1-inch LCD display can be adjusted through the TT RGB Plus software.

Buying Guide

When looking at an AIO liquid cooler, you're essentially buying a self-contained cooling loop for your CPU. The main thing to consider is the radiator size, as it dictates how much heat the cooler can dissipate. Larger radiators, like this 420mm one, are for high-performance CPUs that generate a lot of heat, especially if you're pushing them with overclocking. You also need to make sure your PC case can actually fit it, which is a common oversight.

Radiator Size (e.g., 420mm)

This is the length of the heat exchanger. A larger radiator has more surface area to shed heat, meaning better cooling performance for hotter CPUs. Think of it like a bigger car radiator for a more powerful engine.

Fan RPM, CFM, and Static Pressure

RPM (Revolutions Per Minute) is how fast the fan spins. CFM (Cubic Feet per Minute) measures how much air the fan moves. Static pressure (mm-H2O) indicates how well the fan pushes air through resistance, like a radiator's fins. For AIOs, high static pressure is crucial to force air through the dense radiator for efficient cooling.

LCD Display

Beyond just cooling, many modern AIOs include customizable LCD screens on the pump block. This lets you display system temperatures, custom images, GIFs, or even videos, adding a personalized visual element to your build.

Alternatives

If this 420mm cooler is too large for your case, look for AIOs with smaller radiator sizes like 360mm or 280mm. If you prioritize silence over maximum cooling, seek models with lower fan RPMs or specific low-noise fan designs.

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