Thermaltake TH420 ARGB Sync V2 CPU Liquid Cooler/AlO Liquid Cooling/Fan 140mm*3/PWM 500~2000 RPM/Mirror Waterblock/MB ARGB Sync Control, CL-W376-PL14SW-A , Black
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AI Verdict
This 420mm AIO with three 140mm ARGB fans and a copper cold plate keeps high-end CPUs cool, but demands a large case.
This AIO is a strong fit for high-end desktop systems with demanding CPUs, offering exceptional cooling capacity with its 420mm radiator and three 140mm fans. It's specifically designed for users who need to tame powerful processors and have a large enough chassis to house it.
If you need similar cooling but have a smaller case, look for 360mm AIOs with 120mm fans, ensuring your case supports that radiator size.
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Pros
- Outperforms other 360mm AIOs and air coolers like the Noctua NH-D15, keeping a Ryzen 9 7900X and Intel Core i7-13700K well-cooled.
- CT140 ARGB fans provide 84.32 CFM airflow and 3.02 mm-H2O static pressure, contributing to effective heat dissipation.
- The 27mm slim radiator with a 20mm thickened copper chamber enhances cooling performance while maintaining a relatively compact profile for its size.
- Features a cable-integrated daisy-chain design for fans, reducing the number of 4-pin PWM and 3-pin ARGB ports needed on the motherboard.
- Includes a 5V ARGB Connector Clip to prevent accidental cable disconnections.
- 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 very large PC case for proper fitment.
- Fans operating at their maximum 1800 RPM speed can generate noticeable noise levels, reaching 34.7 dB-A.
- No dedicated RGB controller is included, requiring motherboard software for ARGB lighting control.
- Despite daisy-chaining, users still need to manage a significant amount of cabling within the case.
Dimension Scores
The 420mm radiator with three 140mm fans provides exceptional cooling, keeping a Ryzen 7 7700X at 63.8C under load and outperforming 360mm AIOs.
While capable of quiet operation when tuned, the fans produce 34.7 dB-A at their maximum 1800 RPM, which is audible.
Features a copper base plate, low evaporation tubes, and a 27mm slim radiator with a 20mm copper chamber, indicating robust construction.
The daisy-chain fan design and 5V ARGB Connector Clip simplify fan wiring, reducing the number of motherboard headers required.
Best For
- High-performance gaming PCs with 13th/14th gen Intel or Ryzen 7000 series CPUs needing maximum thermal headroom.
- Enthusiasts building in large cases that can accommodate a 420mm radiator.
- Users who prioritize strong CPU cooling performance over absolute silence at peak loads.
Not Recommended For
- Compact PC builds or cases with limited radiator mounting options.
- Users who demand near-silent operation even under heavy CPU loads.
- Those without motherboard ARGB headers or who prefer a dedicated hardware RGB controller.
Watch Out For
- The 420mm radiator size means it won't fit in many standard ATX cases, so double-check your case's liquid cooling support before buying.
- While it cools effectively, running the fans at their top speed of 1800 RPM results in a 34.7 dB-A noise level, which some users will find loud.
- You'll need a motherboard with compatible ARGB headers (ASUS Aura Sync, GIGABYTE RGB Fusion, MSI Mystic Light Sync, ASRock Polychrome) to control the lighting, as no separate controller is provided.
Full Specifications
| UPC | 841163087930 |
| ASIN | B0CCX9MKRL |
| Brand | Thermaltake |
| Voltage | 5 Volts |
| Wattage | 3.6 watts |
| Material | Aluminum, Tube Material: Rubber, Water Block Material: Copper |
| Item Weight | 6.2 pounds |
| Noise Level | 34.7 Decibels |
| Manufacturer | Thermaltake |
| Cooling Method | Water |
| Number of Items | 1 |
| Air Flow Capacity | 253 Cubic Feet Per Minute |
| Item model number | CLW376PL14SWA |
| Compatible Devices | Desktop |
| Product Dimensions | 17.95"L x 1.06"W x 5.47"H |
| Power Connector Type | 4-Pin |
| Maximum Rotational Speed | 2000 RPM |
What Buyers Say
Users are consistently surprised by the cooling power of this 420mm AIO, especially given its price point, with many reporting significantly lower CPU temperatures than expected. It's frequently noted for its ability to handle demanding CPUs like the Ryzen 9 7900X and Intel Core i7-13700K without thermal throttling. However, the sheer size of the radiator is a recurring point, requiring careful case selection. While the ARGB lighting is appreciated, the lack of an included controller means you're tied to your motherboard's software.
“Dude, this thing actually keeps my 7800X3D from hitting 95C, it's huge but it works, just make sure your case can fit it.”
Common Praise
- Keeps a 14th gen processor below 100 degrees Celsius.
- Outperforms other AIOs and air coolers in CPU temperature management.
- The infinity mirror lighting on the pump head looks visually engaging.
- Daisy-chaining fans simplifies the wiring process.
- Maintains low CPU temperatures even under heavy benchmarking loads.
Common Complaints
- The 420mm radiator is too large for many PC cases.
- Fans can be loud when operating at their maximum 1800 RPM.
- No dedicated RGB controller is included, relying solely on motherboard software.
- Still requires routing a fair amount of cables despite the daisy-chaining.
Ownership Tips
- The pump head's 360-degree rotational cap is genuinely useful for orienting the logo correctly regardless of mounting.
- The included 5V ARGB Connector Clip actually does a decent job preventing the ARGB cables from wiggling loose.
- You'll want to spend some time tweaking the fan curves in your motherboard BIOS to balance noise and cooling, especially if you're sensitive to fan noise.
- The slim 27mm radiator profile helps a bit with clearance, but the overall 420mm length is still the main fitment challenge.
Frequently Asked Questions
What CPU sockets is this cooler compatible with?
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 I control the RGB lighting?
Yes, the ARGB lighting can be synchronized with motherboard software like ASUS Aura Sync, GIGABYTE RGB Fusion, MSI Mystic Light Sync, and ASRock Polychrome.
How loud are the fans?
The CT140 ARGB fans operate at a maximum noise level of 34.7 dB-A at 1800 RPM.
What is the radiator size?
This cooler features a 420mm radiator with a 27mm slim profile and a 20mm thickened copper chamber.
Does it come with an RGB controller?
No, a dedicated RGB controller is not included; lighting control relies on motherboard software.
Buying Guide
When you're looking at liquid coolers, especially big ones like this 420mm AIO, the main thing is whether your PC case can actually fit it. A 420mm radiator is massive, so measure your case's top or front panel carefully for both length and width. Also, think about the noise: bigger fans can move more air at lower RPMs, which means quieter operation, but if they spin up to their max, they'll still make noise. You're buying this for serious CPU cooling, so don't skimp on case compatibility.
cooling_method: Water
This means it uses liquid to transfer heat away from your CPU to a radiator, which is generally more effective than air coolers for high-wattage processors, especially during sustained heavy loads.
fan_size: 140mm
Larger 140mm fans can push more air at lower RPMs compared to 120mm fans, potentially resulting in lower noise levels for the same cooling performance, or better cooling at similar noise levels.
compatible: Desktop
This just tells you it's for standard desktop PCs, not laptops or servers. It's a basic confirmation, but important to note for new builders.
material: Aluminum (radiator), Copper (water block), Rubber (tubes)
Copper is excellent for heat transfer from the CPU, while aluminum is cost-effective for the radiator. Rubber tubes are standard for flexibility and durability in AIOs, ensuring the coolant stays contained.
Alternatives
If this 420mm AIO is too large for your case, search for 360mm or 280mm AIO liquid coolers with similar fan specifications (e.g., 120mm or 140mm fans) and broad socket compatibility for your CPU.
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