The ASUS ROG Ryujin III 240 is an all-in-one liquid CPU cooler designed for high-performance desktop systems and gaming PCs. It combines an eighth-generation Asetek pump, a 240mm-class radiator, two 120mm radiator fans, and a 3.5-inch full-color LCD display. An integrated fan in the water block helps provide additional airflow around the CPU socket area.
Key Features
- 3.5-inch full-color LCD: The water block features a large display for supported visual content and system information.
- Eighth-generation Asetek pump: The pump operates at a specified motor speed of 800–3600 RPM, with a tolerance of ±10%.
- Dual 120mm radiator fans: Two fans provide airflow through the aluminum radiator, with a specified speed range of 450–2000 RPM.
- Integrated water-block fan: A built-in fan operates at up to 5100 RPM ±10% to provide airflow around the CPU socket area.
- Broad CPU socket compatibility: Supports selected Intel LGA 1851, 1700, 1200 and 115x sockets, plus AMD AM5 and AM4 platforms.
Liquid Cooling Performance
The ROG Ryujin III 240 uses a liquid cooling loop with an aluminum radiator and sleeved rubber tubing. The radiator measures 279.5 × 120 × 30 mm, while the tubing is 400 mm long. The copper CPU contact plate transfers heat from the processor into the cooling system for dissipation through the radiator.
LCD Display and Integrated Fan
The 3.5-inch full-color LCD adds a customizable visual element to the system. The water block also incorporates a small fan with a specified airflow of 21.08 CFM and air pressure of 5.53 mmH₂O. Together, these features distinguish the ROG Ryujin III series from conventional liquid CPU coolers.
Platform Compatibility
This cooler supports AMD AM5 and AM4 processors and selected Intel LGA 1851, LGA 1700, LGA 1200 and LGA 115x platforms. Before installation, check the processor socket, case radiator clearance, mounting requirements and available fan or pump connections.
DC Supplies Product Note
The ROG Ryujin III 240 is the standard non-ARGB model. ASUS also offers a separately identified ROG Ryujin III 240 ARGB variant, so verify the exact model when ordering. The standard model's listed radiator fans operate at 450–2000 RPM; specifications for the ARGB version differ.
Specifications
| Brand | ASUS |
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| Part Number / MPN | ROG RYUJIN III 240 |
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| Product Type | All-in-one liquid CPU cooler |
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| Series | Republic of Gamers (ROG) |
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| Radiator Dimensions | 279.5 × 120 × 30 mm |
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| Radiator Material | Aluminum |
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| CPU Contact Plate | Copper |
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| Pump Type | 8th-generation Asetek pump |
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| Pump Motor Speed | 800–3600 RPM ±10% |
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| Water Block Dimensions | 89 × 91 × 101 mm |
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| Integrated Water-Block Fan Speed | 5100 RPM ±10% |
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| Integrated Fan Airflow | 21.08 CFM |
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| Integrated Fan Air Pressure | 5.53 mmH₂O |
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| Radiator Fans | 2 × 120 × 120 × 25 mm |
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| Radiator Fan Speed | 450–2000 RPM ±10% |
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| Radiator Fan Airflow | 71.6 CFM per fan |
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| Radiator Fan Static Pressure | 3.94 mmH₂O |
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| Radiator Fan Noise | 29.7 dB(A) |
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| Tubing | Sleeved rubber tubing, 400 mm long |
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| Display | 3.5-inch full-color LCD |
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| AMD Socket Compatibility | AM5, AM4 |
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| Intel Socket Compatibility | LGA 1851, LGA 1700, LGA 1200, LGA 115x |
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| Thermal Compound | Pre-applied |
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| Manufacturer-Stated Warranty | 6 years; verify regional warranty terms |
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Frequently Asked Questions
What type of cooler is the ASUS ROG Ryujin III 240?
It is an all-in-one liquid CPU cooler with an aluminum radiator, two 120mm radiator fans, an Asetek pump and a 3.5-inch LCD.
Which processor sockets does it support?
Supported sockets include AMD AM5 and AM4, as well as Intel LGA 1851, LGA 1700, LGA 1200 and LGA 115x. Check the current ASUS compatibility information for your specific processor and motherboard.
Does the cooler have an LCD screen?
Yes. The water block includes a 3.5-inch full-color LCD display.
How many radiator fans are included?
The listed package includes two 120mm radiator fans and a fan splitter cable.
Is this the ARGB version?
No. ROG Ryujin III 240 and ROG Ryujin III 240 ARGB are separately identified models. Confirm the exact model name before purchasing.
What is the warranty period?
ASUS lists a six-year warranty for this model on its official specifications page. Regional warranty coverage and conditions may vary.
