ASUS ROG RYUJIN III 240

Overview

The ASUS ROG RYUJIN III 240 is an all-in-one liquid CPU cooler designed to maintain optimal processor temperatures while enhancing your PC build with customizable visuals. Featuring a 240mm aluminum radiator and two 120mm Noctua industrial-grade fans, it delivers strong airflow and effective heat dissipation with minimal noise. The cooler includes an 8th Generation Asetek pump with a larger cold plate to improve water circulation and heat transfer, ensuring your CPU stays cool during demanding tasks.

Its 3.5-inch full-color LCD display allows real-time monitoring of system statistics or personalized animations, adding a unique touch to your setup. With durable 400mm sleeved tubing and broad compatibility across Intel and AMD sockets, this cooler fits a wide range of modern processors. Installation is simplified by pre-applied thermal compound, and fan speeds are adjustable between 450 and 2000 RPM for quiet operation tailored to your needs.

Key features

• 240mm aluminum radiator designed for efficient heat dissipation in high-performance systems
• Two 120mm Noctua industrial-grade fans that provide strong airflow while keeping noise levels low
• 3.5-inch full-color LCD screen for monitoring system stats or displaying custom animations to personalize your build
• 8th Generation Asetek pump with a larger cold plate to enhance water circulation and improve cooling efficiency
• Durable sleeved rubber tubing measuring 400mm for flexibility and long-lasting reliability
• Compatible with a wide range of Intel sockets (LGA 1700, 1200, 115x) and AMD sockets (AM5, AM4), fitting most modern CPUs
• Quiet operation with adjustable fan speeds from 450 to 2000 RPM, allowing you to balance cooling performance and noise
• Pre-applied thermal compound simplifies installation and ensures optimal thermal contact
• Six-year warranty provides confidence in long-term durability and performance

Key specs

• Radiator size: 240mm aluminum
• Fans: Two 120mm Noctua industrial-grade
• Pump: 8th Generation Asetek with larger cold plate
• Tubing length: 400mm sleeved rubber
• Fan speed range: 450 to 2000 RPM
• Display: 3.5-inch full-color LCD
• Socket compatibility: Intel LGA 1700, 1200, 115x; AMD AM5, AM4
• Warranty: Six years

Installation and setup

Installation is straightforward thanks to the pre-applied thermal compound, which ensures optimal thermal transfer without the need for additional paste. The cooler’s mounting system supports a wide range of Intel and AMD sockets, making it suitable for most current CPU platforms. Adjustable fan speeds allow you to fine-tune cooling performance and noise levels according to your workload and preferences.

Ideal uses and environments

This cooler is well suited to gaming rigs and professional workstations that demand reliable and efficient CPU cooling during extended sessions. Its quiet operation and strong airflow make it a solid choice for users who want to maintain low noise levels without sacrificing performance. The customizable LCD display adds a visual flair that fits well in enthusiast builds where aesthetics matter as much as functionality.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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