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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/Black, CL-W386-PL14SW-A
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AI Verdict
This 420mm AIO with a 2.1-inch 480x480 LCD and three 140mm 84.32 CFM ARGB fans is for builders prioritizing visual customization and strong cooling in a large chassis.
This AIO is a strong fit for users with large cases and high-performance CPUs who want top-tier cooling and extensive aesthetic customization via the 2.1-inch LCD. Its 420mm radiator and three 140mm fans provide substantial thermal dissipation capacity.
If a 420mm radiator is too large for your chassis, look for 360mm or 280mm versions of the TH V2 Ultra ARGB series for similar features in a smaller footprint.
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Pros
- The 2.1-inch LCD display with 480x480 resolution supports 16.8M color videos and photos, allowing extensive visual customization.
- It provides robust cooling performance, keeping a Ryzen 7 7700X at 63.8°C under all-core loads without hitting thermal limits.
- The three CT140 ARGB fans deliver 84.32 CFM airflow and 3.02 mm-H2O static pressure, moving a significant amount of air through the radiator.
- The new cable-integrated daisy-chain design for fans simplifies cable management and reduces the number of required motherboard headers.
- It features a copper base plate for accelerated heat conductivity and a 27mm slim radiator with a thickened 20mm copper chamber for efficient heat dissipation.
- Broad compatibility with Intel LGA 2066/2011-3/2011/1700/1200/1156/1155/1151/1150 and AMD AM5/AM4/AM3+/AM3/AM2+/AM2/FM2/FM1 sockets covers most modern and older CPUs.
Cons
- The large 420mm radiator size requires a medium to large chassis, potentially limiting compatibility with smaller PC cases.
- Fan noise is rated at 34.7 dB-A, which might be noticeable under load compared to quieter alternatives.
- Some users reported buggy behavior with the RGB software on ASUS motherboards, despite advertised sync compatibility.
- The Ultra Series products are exclusively supported by the TT RGB Plus 2.0 Software, which might be a limitation for users preferring other RGB ecosystems.
Dimension Scores
The 420mm radiator, copper base plate, and three 140mm fans with 84.32 CFM airflow and 3.02 mm-H2O static pressure provide high thermal dissipation, keeping a Ryzen 7 7700X at 63.8°C under load.
The fans are rated at 34.7 dB-A, which is audible but not excessively loud for a high-performance 140mm fan, placing it around category average for this cooling capacity.
It uses a copper base plate and a 27mm slim aluminum radiator with a thickened 20mm copper chamber, indicating solid material choices for heat transfer and durability.
The cable-integrated daisy-chain design for the fans significantly reduces cable clutter and the number of motherboard headers required, simplifying installation.
Best For
- Enthusiast PC builds with high-TDP CPUs needing effective thermal management.
- Users prioritizing extensive visual customization with a high-resolution LCD on their CPU cooler.
- Large PC cases that can accommodate a 420mm radiator and three 140mm fans.
Not Recommended For
- Compact or small form factor PC builds due to the 420mm radiator size.
- Users who prefer a completely silent PC, as fan noise can reach 34.7 dB-A.
- Builders who want to avoid proprietary software for RGB control, as it relies on TT RGB Plus 2.0.
Watch Out For
- The 420mm radiator is physically large; one user had to remove a case fan to make it fit, so measure your case carefully before buying.
- RGB software can be buggy on specific motherboards like ASUS, which means advertised sync features might not work seamlessly.
- Some users have reported fan vibration issues, which could lead to increased noise or potential longevity concerns.
Full Specifications
| UPC | 841163087978 |
| ASIN | B0CCXDLFZZ |
| Brand | Thermaltake |
| Voltage | 12 Volts, 5 Volts |
| Wattage | 20.61 watts |
| Material | Aluminum, Tube Material: Rubber, Water Block Material: Copper |
| Item Weight | 6.3 pounds |
| Noise Level | 34.7 Decibels |
| Manufacturer | Thermaltake |
| Cooling Method | Water |
| Number of Items | 1 |
| Item model number | CLW386PL14SWA |
| Compatible Devices | Desktop |
| Product Dimensions | 17.95"L x 1.06"W x 5.47"H |
| Power Connector Type | 3-Pin |
| Maximum Rotational Speed | 1800 RPM |
What Buyers Say
The most striking feature for users is definitely that 2.1-inch LCD screen on the water block; people are really into customizing it with GIFs and system stats. The cooling performance is consistently praised, with one user noting it kept a Ryzen 7 7700X well below thermal limits even under heavy loads. Installation is generally straightforward, but you absolutely need to double-check your case dimensions because a 420mm radiator is a beast and might require fan removal to fit. While RGB sync works with most motherboards, there are isolated reports of buggy behavior with ASUS software.
“Dude, this thing cools my 7700X like a champ, and that screen on the pump head is just sick, I got my dog's face on it, but seriously measure your case, this thing is HUGE.”
Common Praise
- The 2.1-inch 480x480 resolution LCD display allows for extensive personalization with videos and system monitoring.
- Keeps high-end CPUs like the Ryzen 7 7700X running cool, preventing thermal throttling even under all-core loads.
- The daisy-chain fan cabling simplifies the build process and reduces cable clutter.
- The overall aesthetic with the ARGB fans and LCD screen looks really sharp in a build.
- Broad compatibility with both Intel and AMD sockets, including the latest generations.
Common Complaints
- The 420mm radiator size is a tight fit or impossible for many cases, requiring careful measurement.
- RGB software can be buggy, specifically noted with ASUS motherboards, impacting synchronization.
- Some users have experienced fan vibration, which can contribute to audible noise.
- Reliance on proprietary TT RGB Plus 2.0 software for full functionality might not appeal to all users.
Ownership Tips
- The LCD screen is a constant source of customization, letting you change GIFs or monitor temps on the fly, which is way cooler than just static RGB.
- You'll spend a bit of time routing the daisy-chained fan cables, but it's much cleaner than individual fan wires.
- The TT RGB Plus 2.0 software, while necessary, does offer a lot of control once you get the hang of it.
- Even with the rated fan noise, under normal use, it's not distracting unless you're really pushing your CPU hard.
- Make sure to check for firmware updates for the LCD and pump, as they can sometimes fix minor glitches.
Frequently Asked Questions
What CPU sockets is this cooler compatible with?
It's compatible with a wide range of Intel sockets including LGA 2066/2011-3/2011/1700/1200/1156/1155/1151/1150 and AMD sockets AM5/AM4/AM3+/AM3/AM2+/AM2/FM2/FM1.
Can I customize the display on the water block?
Yes, the 2.1-inch LCD display has a 480x480 resolution and can show 16.8M color videos, photos, real-time system information, local time, and weather.
What software is needed to control the RGB and LCD?
You'll need the TT RGB Plus 2.0 Software to control the Ultra Series products, including this cooler's RGB lighting and LCD display.
How noisy are the fans?
The CT140 ARGB fans are rated at 34.7 dB-A at their maximum speed of 1800 RPM.
Does it support motherboard RGB synchronization?
Yes, it's designed to synchronize with ASUS Aura Sync, GIGABYTE RGB Fusion, MSI Mystic Light Sync, and ASRock Polychrome.
Buying Guide
When looking at AIO liquid coolers, you're essentially balancing cooling power, noise, and aesthetics. For this product, the '420' in its name refers to the radiator length in millimeters, meaning it's a very large cooler designed for maximum heat dissipation. The 'Ultra ARGB' part tells you it has addressable RGB lighting and a customizable LCD screen, which is a big part of its appeal. You need to verify your PC case has enough space for a 420mm radiator and three 140mm fans before anything else.
Radiator Size (420mm)
This is the biggest factor for cooling capacity; a larger radiator means more surface area to dissipate heat, like a bigger car radiator keeping an engine cooler. But it also means it needs a much larger case to fit.
Fan Airflow (84.32 CFM) & Static Pressure (3.02 mm-H2O)
CFM (Cubic Feet per Minute) tells you how much air the fan moves, like how much wind it creates. Static pressure indicates how well the fan pushes air through resistance, like a dense radiator. Higher numbers here mean better cooling, especially through restrictive fins.
LCD Display (2.1-inch, 480x480 resolution)
This isn't just for looks; it lets you display real-time CPU temperatures, fan speeds, or even custom images and GIFs directly on your CPU block. It's like having a tiny, personalized dashboard right inside your PC.
Alternatives
If this 420mm model is too large, search for AIOs with 360mm or 280mm radiators that still offer an LCD display and ARGB fans. If the LCD isn't a priority, you can find more budget-friendly AIOs with similar cooling performance but without the visual flair.



