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ASUS · 240 mm liquid cooler · 240 mm radiator

ASUS ROG Ryujin III 240

2 fans · 30 dBA

Performance
88%
Perf / price
23
Acoustics
63
Amazon
$170
ASUS ROG Ryujin III 240
View ASUS ROG Ryujin III 240 Gallery in high resolution
$170
Not currently available Updated Jun 14, 2026 Prime FBA
Performance87.5%
Performance / price22.6
Acoustics63.3
$170 on Amazon Cooler table Compare this cooler

Check this cooler in a buildSelect a CPU and case first so socket, height, and radiator support can be evaluated. Start with the CPU

Written analysis

ASUS ROG Ryujin III 240 at a glance

The ASUS ROG Ryujin III 240 is a 240 mm liquid cooler cooler listed as 240 mm radiator. It is listed with 2 120 mm fans.

Review-derived relative cooling performance is 87.5%. Recorded noise is 30 dBA, for an acoustics score of 63.3. Airflow is listed at 72 CFM. Warranty is 6 years.

Best fit: Mainstream and performance desktop builds that need solid review-derived cooling performance.

Fitment and sockets

Radiator class is 240 mm — confirm case radiator support. Socket compatibility includes LGA 1150, LGA 1151, LGA 1155, LGA 1156, LGA 1200, LGA 1700, LGA 1851, AM5, AM4. CPU block / cold plate: Copper.

Current value

At $170, performance / price is 22.6. Compare nearby coolers of the same type below; quieter acoustics and fitment can outweigh a small score gap.

Cooler data

Full specifications

Cooling type, fitment, sockets, fans, acoustics, features, and value in one technical sheet.

General

Manufacturer
ASUS
Cooler
ASUS ROG Ryujin III 240
Warranty
6 years
Launch price
—
Amazon price
$170
Amazon availability
Not currently available
Price updated
Jun 14, 2026

Cooling type & fit

Type
240 mm liquid cooler
Size class
240 mm radiator
Height
30 mm
Radiator class
240 mm
Radiator dimensions
279.5 x 120 x 30 mm

Value

Amazon price
$170
Relative performance
87.5%
Performance / price
22.6
Acoustics
63.3

Sockets & block

Socket compatibility
LGA 1150, LGA 1151, LGA 1155, LGA 1156, LGA 1200, LGA 1700, LGA 1851, AM5, AM4
CPU block
Copper

Fans & acoustics

Fan size
120 mm
Fan count
2
Fan speed
2000 rpm
Noise
30 dBA
Airflow
72 CFM
Acoustics score
63.3

Features

RGB lighting
No
Thermal paste included
No
Display
3.5” LCD Display for instant monitoring hardware information and allows users to upload customized GIF animation with doubled file volumes
Color
—

Additional information

Also listed as
Ryujin III 240 ARGB

Amazon

Price history

Nearby performance

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Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

3.5” LCD Display for instant monitoring hardware information and allows users to upload customized GIF animation with doubled file volumes

The latest 8th gen Asetek pump with a 3-phase motor delivers ultimate cooling performance, higher flow and lower impedance, as well as noise reduction

Embedded fan with a new ring-shaped frame design and advanced airflow channels improved to reduce heat around VRM area

Premium ROG ARGB magnetic daisy-chainable fans with Gen 2 LED to allow users to customize the LED lighting effects

Armoury Crate offers complete control of pump, embedded fan, and radiator fan speeds, and allows custom animations and system stats to be displayed on the LCD screen

A free one-year AIDA 64 license is also provided for advanced system monitoring

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