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
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AI Verdict
This 420mm AIO with three 140mm ARGB fans and a copper cold plate is for builders needing high-capacity cooling for next-gen Intel/AMD CPUs in a large chassis.
This cooler is a situational fit because its 420mm radiator and three 140mm fans offer exceptional cooling capacity for high-wattage CPUs, but this comes at the cost of significant physical size. It requires a very specific, large chassis to accommodate it, making it unsuitable for most standard builds.
If your case can't handle a 420mm radiator, look for a 360mm AIO with similar fan specifications (1800 RPM, 84.32 CFM) for slightly less cooling but broader compatibility.
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Pros
- The 420mm radiator and three 140mm fans (1800 RPM, 84.32 CFM) deliver exceptional heat dissipation for demanding CPUs.
- It supports a wide 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.
- The pump operates at 3100 RPM, ensuring consistent water circulation to the copper cold plate.
- ARGB lighting on the fans and pump can sync with 5V motherboard headers from major brands like ASUS, GIGABYTE, MSI, and ASRock.
- Daisy-chain cables for fan power and RGB simplify installation and cable management.
Cons
- The massive 420mm radiator and three 140mm fans severely limit case compatibility, requiring a very large chassis.
- Operating fans at their maximum 1800 RPM can result in a 34.7 dB-A noise level, which is noticeable.
- The cooler does not include a dedicated RGB controller, relying solely on motherboard software for lighting control.
- There are many cables to manage for the pump, fans, and RGB, which can be time-consuming.
Dimension Scores
The 420mm radiator combined with three 140mm fans (84.32 CFM airflow, 3.02 mm-H2O static pressure) provides exceptional heat dissipation for high-end CPUs.
While capable of quiet operation at lower speeds, the fans can reach 34.7 dB-A at their maximum 1800 RPM, which is audible.
It features a copper cold plate and low evaporation tubing, indicating durable construction for long-term use.
Despite daisy-chaining for RGB and fan power, the sheer number of cables for the pump, fans, and lighting can still be cumbersome to manage neatly in a build.
Best For
- Enthusiast PC builds with high-end Intel i7/i9 or AMD Ryzen 7/9 CPUs that generate significant heat.
- Users prioritizing maximum thermal performance over absolute silence at peak loads.
- White-themed PC builds that can accommodate a 420mm radiator.
- Builders who already have a compatible motherboard with a 5V ARGB header for lighting control.
Not Recommended For
- Compact or mid-tower PC cases that cannot physically fit a 420mm radiator.
- Users who demand near-silent operation under all load conditions, especially at maximum fan speeds.
- Systems without a 5V ARGB header on the motherboard, as there's no included RGB controller.
Watch Out For
- The 420mm radiator's dimensions (456 x 140 x 27 mm) mean it won't fit in many standard cases, potentially blocking other components or requiring specific chassis like the Thermaltake Ceres 500.
- At its maximum 1800 RPM, the fans produce 34.7 dB-A of noise, which some users find too loud for quiet computing.
- While the tubing is 460mm long, the sheer size of the radiator and fan assembly can make routing and installation challenging in anything but the largest cases.
- The product relies on a 5V ARGB header for lighting control; without one, the RGB features are non-functional.
Full Specifications
| UPC | 841163086889 |
| ASIN | B0BV893KCX |
| Brand | Thermaltake |
| Voltage | 12 Volts, 5 Volts |
| Wattage | 3.36 watts |
| Material | Copper |
| Item Weight | 2.2 pounds |
| Noise Level | 35.7 Decibels |
| Manufacturer | Thermaltake |
| Cooling Method | Water |
| Number of Items | 1 |
| Item model number | CL-W369-PL14SW-A |
| Compatible Devices | Desktop |
| Product Dimensions | 5.51"L x 0.98"W x 5.51"H |
| Power Connector Type | 4-Pin |
| Maximum Rotational Speed | 1800 RPM |
What Buyers Say
This Thermaltake TH420 ARGB Sync cooler is a beast when it comes to keeping your CPU temperatures down, especially for those power-hungry Intel and AMD chips. Many users are genuinely surprised by the cooling performance it offers for its price point. However, that massive 420mm radiator is a real commitment, and you'll need to double-check your case dimensions before even thinking about it. The RGB lighting is a definite plus if your motherboard supports it, but don't expect a silent system when those fans are spinning at full tilt.
“Dude, this thing is HUGE, but my 13900K finally stopped throttling, so I guess it's worth the struggle to cram it in my case. The RGB looks sick though, totally matches my white build.”
Common Praise
- Keeps high-end CPUs like Ryzen 9 7900X and Intel Core i7-13700K very cool, even under load.
- Offers significant cooling capacity for the money, often outperforming smaller, more expensive AIOs.
- The ARGB lighting on the fans and pump looks sharp and integrates well with motherboard software.
- The 420mm radiator provides a large surface area for efficient heat exchange.
Common Complaints
- The physical size of the 420mm radiator makes it difficult to fit into many PC cases.
- Fans can get noticeably loud when running at their maximum 1800 RPM.
- Managing all the cables for the pump, three fans, and RGB can be a chore.
- No included RGB controller means you're dependent on motherboard 5V ARGB headers.
Ownership Tips
- The white finish and ARGB lighting stay consistent and vibrant over time, maintaining the aesthetic.
- Even after months of use, the pump remains quiet and effective, with no noticeable gurgling or performance degradation.
- The daisy-chaining for the fans and RGB, while helpful, still results in a dense bundle of wires near the radiator that needs careful routing.
- The mounting hardware is straightforward, but the sheer weight and size of the unit make it awkward to install solo.
Frequently Asked Questions
Does this cooler come with thermal paste?
The product description and specifications do not explicitly mention included thermal paste, so you should plan to purchase it separately.
Can I control the RGB lighting without specific motherboard software?
No, this cooler requires a 5V ARGB header on your motherboard and compatible software (like ASUS Aura Sync, GIGABYTE RGB Fusion, MSI Mystic Light Sync, or ASRock Polychrome) to control the lighting. There is no standalone controller included.
Is this AIO compatible with Intel's latest LGA 1700 socket?
Yes, the Thermaltake TH420 ARGB Sync is compatible with Intel LGA 1700 sockets, as well as AMD AM5.
Do the tubes need to be refilled with coolant?
Thermaltake states the low evaporation tubing effectively decreases coolant loss, so no regular refilling is required.
What is the fan speed range?
The three 140mm ARGB Sync Fans have a maximum speed of 1800 RPM.
Buying Guide
When you're looking at liquid coolers, especially big ones like this 420mm, you're mostly thinking about how much heat it can pull away from your CPU. The bigger the radiator and the more fans, generally the better the cooling. But that also means it takes up a lot more space in your computer case. You need to make sure your case actually has mounting points for a radiator this size, usually at the top or front, and that there's enough clearance for the fans and the radiator thickness.
Radiator Size (420mm)
This is the main heat exchange surface. Think of it like the bigger the car's radiator, the better it can cool the engine. A 420mm radiator is one of the largest consumer options, meaning it can dissipate a lot of heat, crucial for overclocked or high-core-count CPUs.
Fan Airflow (84.32 CFM) and Static Pressure (3.02 mm-H2O)
Airflow (CFM) tells you how much air the fan moves, like how strong a fan is. Static pressure tells you how well it pushes air through resistance, like a dense radiator. For an AIO, you want a good balance, as the fans need to push air through the radiator fins.
Pump Speed (3100 R.P.M.)
This dictates how quickly the coolant circulates through the system. A higher pump speed generally means more efficient heat transfer from the CPU cold plate to the radiator, like a stronger heart pumping blood faster.
Alternatives
If this 420mm cooler is too large for your case, search for 360mm or 280mm AIOs with similar fan RPMs and static pressure ratings for slightly less cooling performance but wider case compatibility.
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