ASUS ROG Ryujin III 240 ARGB All-in-one Liquid CPU Cooler with 240mm Radiator. Asetek 8th gen Pump, 2X Magnetic 120mm ARGB Fans (Daisy Chain Design), 3.5” LCD Display
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AI Verdict
This 240mm AIO with an 8th gen Asetek pump and 3.5-inch LCD is for users prioritizing high-performance CPU cooling and visual customization.
This AIO is a strong fit for users seeking a blend of high-performance cooling for modern CPUs, visual customization via its 3.5-inch LCD, and simplified installation with magnetic fans. The 8th gen Asetek pump and embedded VRM fan address both CPU and motherboard thermal needs.
If you're pushing a top-tier CPU with heavy overclocking, consider a 360mm radiator AIO for increased thermal headroom.
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Pros
- The 8th gen Asetek pump with a 3-phase motor delivers high flow and lower impedance for cooling performance.
- A 3.5-inch LCD display allows for instant hardware monitoring and custom GIF animations with 32 MB memory.
- An embedded fan with advanced airflow channels improves VRM thermals by up to 35 Celsius.
- ROG ARGB magnetic daisy-chainable fans simplify installation and cable management with a single cable for two fans.
- Armoury Crate software offers control over pump, embedded fan, and radiator fan speeds, plus custom animations.
- Includes a 6-year warranty, indicating manufacturer confidence in durability.
Cons
- Armoury Crate software is frequently reported by users as problematic or 'malware' due to its intrusive nature.
- The 3.5-inch LCD screen's graphics quality and customization options are considered 'a little low' or 'very limited' by some users.
- A 240mm radiator might not provide sufficient cooling capacity for heavily overclocked, high-TDP CPUs like a Ryzen 9 9950X or i9 14900k in all scenarios.
- The pump motor speed ranges from 800 to 3600 +/- 10% RPM, which could contribute to noise at higher loads.
Dimension Scores
The 8th gen Asetek pump with a 3-phase motor and an embedded VRM fan provide effective cooling for high-end CPUs and motherboard components.
Users report the cooler as 'dead quiet' at idle and having a 'very acceptable noise level' during operation, with fan noise at 36.45dB(A) at 2200RPM.
Features like a 32% larger copper cold plate, enhanced 7mm inner diameter tubing, a 30mm thick radiator, and a 6-year warranty indicate a premium construction.
The magnetic daisy-chainable ARGB fans significantly simplify cable routing by requiring only one cable for both fans.
Best For
- Gaming systems requiring high-performance CPU cooling for Intel LGA 1851/1700 or AMD AM5/AM4 processors.
- Users who want to display system statistics or personalized GIFs on a 3.5-inch LCD.
- PC builders prioritizing clean aesthetics and simplified cable management with magnetic daisy-chainable ARGB fans.
- Enthusiasts looking for improved VRM cooling around the CPU socket.
Not Recommended For
- Users who prefer to avoid proprietary software like Armoury Crate for system control.
- Budget-conscious builders, given its mid-range price band and premium features.
- Extreme overclockers running the highest-TDP CPUs in compact ITX cases, where a 240mm radiator might be insufficient.
Watch Out For
- Armoury Crate software is almost a requirement for full functionality but is often described as intrusive or 'malware' by users.
- The 3.5-inch LCD's definition and customization options are reported as 'a little low' or 'very limited' compared to user expectations.
- While effective, the 240mm radiator size may struggle to maintain optimal temperatures for CPUs like the Ryzen 9 9950X or i9 14900k under sustained heavy loads.
Full Specifications
| UPC | 197105048188 |
| ASIN | B0C9SLJ44B |
| Brand | ASUS |
| Voltage | 12 Volts |
| Material | Aluminum, Copper |
| Item Weight | 3.1 pounds |
| Noise Level | 36.45 Decibels |
| Manufacturer | ASUS |
| Cooling Method | Fan, Water |
| Number of Items | 1 |
| Item model number | ROG RYUJIN III 240 ARGB |
| Compatible Devices | Radiator |
| Package Dimensions | 12.87 x 10.43 x 6.18 inches |
| Power Connector Type | 3-Pin |
What Buyers Say
Many users report frustration with the mandatory and often problematic Armoury Crate software, which is essential for controlling the cooler's features. Despite software woes, the cooling performance for CPUs like the Ryzen 9 7900x and i9 14900k is consistently praised, with some users seeing 10-degree temperature drops. The 3.5-inch LCD display is a major draw, allowing for system monitoring and custom GIFs, though some wish for more customization depth and higher resolution. The magnetic daisy-chain fans are a hit for simplifying installation and cable routing.
“Look, this thing cools my 7900x like a champ and the screen is cool for showing my temps, but seriously, ASUS, fix your damn Armoury Crate, it's a pain to deal with every time I want to change something!”
Common Praise
- Provides effective cooling for high-end CPUs, with reported 10°C gains in idle and gaming.
- The magnetic daisy-chainable fans make installation and cable management straightforward.
- The 3.5-inch LCD display offers engaging system monitoring and custom animation options.
- The embedded fan effectively reduces heat around the motherboard VRM area.
- Quiet operation, especially at rest, with fan noise at 36.45dB(A) at max speed.
Common Complaints
- Armoury Crate software is often described as buggy, intrusive, or 'malware' and is required for full control.
- The LCD screen's definition and customization options are considered 'a little low' or 'very limited' by some users.
- The 240mm radiator size may not be sufficient for extreme cooling demands of some high-TDP CPUs in specific builds.
- Some users find the AIDA64 license included to be 'useless statistics' if Armoury Crate is already providing monitoring.
Ownership Tips
- You'll likely spend time wrestling with Armoury Crate to get the LCD and fan curves exactly how you want them.
- The magnetic fans are genuinely a time-saver during installation and keep the build looking much cleaner.
- The VRM fan actually makes a noticeable difference in motherboard temperatures, which is a subtle but important benefit.
- The LCD, while a bit low-res for some, becomes a focal point in the case and is fun for personalizing your build.
- Even with the 240mm radiator, it handles most modern high-end CPUs well, but don't expect miracles if you're pushing extreme overclocks.
Frequently Asked Questions
What CPU sockets is this cooler compatible with?
It supports Intel LGA 1851, 1700, 1200, 115x, and AMD AM5, AM4 sockets.
What can the 3.5-inch LCD display?
The LCD can display real-time hardware information like clock frequencies, temperatures, and fan speeds, as well as custom GIF animations and images.
How do the fans connect?
The ROG ARGB fans are magnetic and daisy-chainable, meaning they snap together and only require one cable for power and control, simplifying wiring.
Is the Armoury Crate software necessary?
While the cooler functions without it, Armoury Crate is needed to control pump and fan speeds, and to customize the LCD display.
Does it come with thermal paste pre-applied?
Yes, the CPU liquid cooler comes with thermal compound pre-applied to the cold plate.
Buying Guide
When looking at AIO liquid coolers, you're essentially buying a self-contained cooling loop for your CPU. The radiator size, like this 240mm one, dictates how much heat it can dissipate, similar to how a larger car radiator cools an engine more effectively. The pump is the heart, circulating the liquid, and its generation (like Asetek 8th gen) indicates its efficiency and noise levels. Fans move air through the radiator, so their speed and noise are important for both cooling and acoustics.
240mm Radiator
This is the size of the heat exchanger. A 240mm radiator uses two 120mm fans and is a common choice, offering a balance between cooling performance and compatibility with most PC cases. Larger radiators (e.g., 360mm) offer more cooling capacity but require more space.
Asetek 8th Gen Pump
Asetek is a leading manufacturer of AIO pumps. The '8th Gen' signifies the latest iteration, meaning it's designed for higher flow, lower impedance, and reduced noise compared to older generations, directly impacting cooling efficiency and quietness.
Embedded Fan
This small fan is built into the pump block and specifically targets the VRM (Voltage Regulator Module) area of your motherboard. Cooling the VRMs helps maintain motherboard stability and can extend their lifespan, especially with power-hungry CPUs.
Alternatives
If you need more cooling power for extreme overclocking or hotter CPUs, look for AIOs with larger radiator sizes, such as 360mm or 420mm. If software control is a major concern, research coolers known for simpler or open-source control options.
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