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Thermaltake TH420 ARGB Sync All-in-One Liquid Cooler Snow Edition, AMD(AM5/AM4) Intel(LGA 1700/1200), 420mm High Efficiency Radiator, CL-W369-PL14SW-A,White
Thermaltake

Thermaltake TH420 ARGB Sync All-in-One Liquid Cooler Snow Edition, AMD(AM5/AM4) Intel(LGA 1700/1200), 420mm High Efficiency Radiator, CL-W369-PL14SW-A,White

4.2(1.7K+ reviews, all variants)
Amazon's Choiceentry plus$100-$149
#1,944 in Computer CPU Cooling Fans
wattage
3.36 watts
fan size
420mm
material
Copper
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

This 420mm AIO liquid cooler with three 140mm ARGB fans is for PC builders needing serious cooling for modern CPUs without breaking the bank.

Situational Fit

This 420mm AIO is a strong performer for dissipating heat from high-end CPUs, featuring a copper cold plate and three 140mm ARGB fans. However, its substantial size means it only fits in very large cases, and its pump and fans can be audibly noticeable at full speed.

If case compatibility is a concern, look for a 360mm or 280mm AIO with similar fan specifications (CFM, static pressure) for a more compact fit.

Regret Score™

Medium Risk

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

38/100
vs. 1,285 Power & Cooling we've analyzedSafer than 18%
Hidden Defects
19/35

Issues discovered after purchase

Achilles' Heel
3/25

Critically weak dimension

Expectation Gap
5/20

Amazon rating vs actual quality

Fit Risk
11/20

Chance this product isn't for you

BuyChoice Score
3.0

Pros

  • The 420mm radiator and three 140mm fans provide substantial heat dissipation for current Intel and AMD CPUs.
  • Features a copper cold plate for efficient heat transfer from the CPU.
  • Includes daisy-chain cables and ARGB connector locks for simplified fan and RGB wiring.
  • Compatible with a broad range of Intel (LGA 1700/1200/2066/2011-3/2011/1366/1156/1155/1151/1150) and AMD (AM5/AM4/AM3+/AM3/AM2+/AM2/FM2/FM1) sockets.
  • ARGB lighting syncs with major motherboard software like ASUS Aura Sync and MSI Mystic Light Sync via a 5V header.

Cons

  • The 420mm radiator requires a very large PC case, limiting compatibility with many chassis.
  • The pump operates at 3100 RPM, with one user reporting noise levels of 60-70dBm near the pump.
  • Fans can be noisy at their maximum speed of 1800 RPM, rated at 34.7 dB-A.
  • No dedicated RGB controller is included, requiring motherboard software for lighting control.

Dimension Scores

Efficiency & Output8/10

The 420mm radiator with three 140mm fans and a copper cold plate is designed for high heat dissipation, capable of cooling next-gen Intel and AMD CPUs.

Noise Level4/10

While fans are rated at 34.7 dB-A, the 3100 RPM pump has been reported by a user to reach 60-70dBm, indicating it can be noticeably loud.

Build Quality6/10

It features a copper cold plate and aluminum radiator, with rubber tubing, but some users have reported pump failures in similar Thermaltake AIOs.

Cable Management6/10

The fans offer daisy-chaining and connector locks, which simplifies wiring, but the overall number of cables for a 420mm AIO can still be substantial.

Best For

  • Enthusiast PC builds with high-TDP Intel Core i7/i9 or AMD Ryzen 7/9 CPUs needing maximum cooling.
  • Users with extra-large PC cases that can accommodate a 450 x 140 x 27 mm radiator.
  • Builders prioritizing raw cooling performance over absolute silence at peak loads.

Not Recommended For

  • Compact or mid-tower PC builds due to the large 420mm radiator size.
  • Users sensitive to pump or fan noise, especially at higher RPMs.
  • Systems without a 5V addressable RGB header on the motherboard for lighting control.

Watch Out For

  • The 420mm radiator measures 450 x 140 x 27 mm, making it incompatible with many standard PC cases that lack sufficient clearance for such a large unit.
  • One user reported pump noise reaching 60-70dBm at 3100 RPM, which is significantly louder than typical fan noise ratings.
  • The fans, while powerful, can generate 34.7 dB-A of noise at their maximum 1800 RPM, potentially distracting during demanding tasks.
  • Older Thermaltake AIO models in the same series have been reported to experience pump failures, raising potential long-term reliability concerns.

Full Specifications

UPC841163086889
ASINB0BV893KCX
BrandThermaltake
Voltage12 Volts, 5 Volts
Wattage3.36 watts
MaterialCopper
Item Weight2.2 pounds
Noise Level35.7 Decibels
ManufacturerThermaltake
Cooling MethodWater
Number of Items1
Item model numberCL-W369-PL14SW-A
Compatible DevicesDesktop
Product Dimensions5.51"L x 0.98"W x 5.51"H
Power Connector Type4-Pin
Maximum Rotational Speed1800 RPM

What Buyers Say

This Thermaltake TH420 ARGB Sync cooler is a beast for keeping high-end CPUs cool, but you really need to check your case dimensions first. Users consistently point out its ability to handle demanding processors, but the trade-off can be the noise, especially from the pump. The ARGB lighting is a plus for aesthetics, assuming your motherboard supports it without needing an extra controller.

“Man, this thing cools my 13700K like it's nothing, but holy smokes, the pump can get whiny sometimes. Make sure your case is a mansion, seriously.”

Common Praise

  • Keeps CPU temperatures low even under heavy loads on Intel Core i7/i9 and AMD Ryzen 7/9.
  • The 420mm radiator provides a large surface area for heat exchange.
  • ARGB lighting on the fans integrates well with motherboard RGB software.
  • The copper cold plate effectively transfers heat from the CPU.

Common Complaints

  • The sheer size of the 420mm radiator makes it difficult to fit in many PC cases.
  • Pump noise can be distracting, with one user measuring 60-70dBm.
  • Fans can be loud at their maximum 1800 RPM.
  • Concerns about potential pump reliability based on experiences with other Thermaltake AIOs in the series.

Ownership Tips

  • Verifying case clearance for the 450 x 140 x 27 mm radiator is essential before purchase.
  • Adjusting fan curves in BIOS or software can help manage noise levels, especially for the 1800 RPM fans.
  • Confirming a 5V ARGB header on your motherboard is necessary for lighting control, as no separate controller is included.
  • The pump's 3100 RPM can be a consistent background noise, even at idle, for some users.

Frequently Asked Questions

What CPU sockets is this cooler compatible with?

It's compatible with a wide range of Intel sockets including LGA 1700, 1200, 2066, 2011-3, 2011, 1366, 1156, 1155, 1151, 1150, and AMD sockets AM5, AM4, AM3+, AM3, AM2+, AM2, FM2, FM1.

Does this AIO come with an RGB controller?

No, a dedicated RGB controller is not included. The ARGB lighting syncs directly with compatible 5V addressable RGB headers on your motherboard.

How long are the tubes on the cooler?

The rubber tubes connecting the pump to the radiator are 460mm long, providing flexibility for installation in larger cases.

Is this cooler quiet?

The fans are rated for 34.7 dB-A at maximum speed. While the pump speed is 3100 RPM, one user reported pump noise around 60-70dBm, suggesting it can be audibly present.

What are the dimensions of the radiator?

The radiator measures 450 x 140 x 27 mm. You'll need a case that can accommodate these dimensions.

Buying Guide

When you're looking at an AIO cooler like this, you're basically getting a self-contained water cooling system for your CPU. The big thing here is the radiator size – 420mm is huge, which means it can dissipate a lot of heat, but it also means it won't fit in just any PC case. You need to measure your case's top or front panel carefully to ensure there's enough room for the radiator and its three 140mm fans. Also, consider the noise; bigger fans can move more air at lower RPMs, but at full tilt, they'll still make some noise, and the pump has its own sound profile.

Radiator Size (420mm)

This is the heat exchanger. A larger radiator, like this 420mm one, has more surface area to shed heat, which directly translates to better cooling performance for your CPU, especially under heavy loads. Think of it like a bigger car radiator keeping an engine cooler.

Fan Airflow (84.32 CFM)

CFM (Cubic Feet per Minute) tells you how much air the fans can push through the radiator. Higher CFM means more air moving over the hot fins, carrying heat away more effectively.

Fan Static Pressure (3.02 mm-H2O)

Static pressure measures how well a fan can push air through resistance, like the dense fins of a radiator. A higher static pressure rating means the fans can force air through the radiator more efficiently, improving cooling.

Pump Speed (3100 RPM)

The pump circulates the coolant. A higher RPM generally means more coolant flow, which can improve cooling efficiency. However, it can also contribute to noise, as one user noted.

Alternatives

If this 420mm AIO is too large for your case, search for 360mm or 280mm AIOs with high static pressure fans and a copper cold plate. If noise is a primary concern, look for AIOs with lower fan RPMs or specific low-noise pump designs.

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