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Black AIO liquid cooler with 240mm radiator, dual 120mm fans and square pump block featuring 1.77 inch OLED display

ASUS

ASUS ROG Ryujin 240 90RC0030-M0AAY0 liquid cooler

SKU CH-KD5J-93A67 MPN 90RC0030-M0AAY0

A 240 mm liquid CPU cooler with a 1.77 inch OLED display, embedded VRM micro-fan and dual 120 mm Noctua industrial fans reaching 2000 RPM

  • Radiator size272 × 122 × 27 mm
  • Fan size2 Fan Slots (120 mm)
  • Compatible socketsIntel LGA 2066 / 2011-3 / 2011 / 1700 / 1366 / 115x AMD AM4
  • Block dimensions100 × 100 × 70 mm
  • Cooling block materialCopper
  • Radiator materialAluminum

Fan Size 2 Fan Slots (120mm)

Model ROG RYUJIN 240

  • 77" OLED shows live stats and custom animations via LIVEDASH software
  • Noctua iPPC PWM fans push 121.8 CFM at up to 2000 RPM for strong airflow
  • Embedded microfan cools VRM and M.2 area by up to 20°C
  • Aura Sync RGB lighting synchronises effects across compatible components
  • Reinforced sleeved tubing and aluminum pump cover built for long-term durability

For 240 mm AIO builds

The ASUS ROG Ryujin 240 is a closed-loop liquid cooler built around a 240 mm aluminium radiator and two 120 mm Noctua industrial PWM fans. It targets enthusiasts who want a pre-filled unit with an integrated 1.77 inch colour OLED panel and addressable RGB lighting for real-time system stats and custom animations.

Mounting and noise notes

The pump block measures 100.00 x 100.00 x 70.00 mm and includes pre-applied thermal compound, so installation starts by fitting the supplied brackets for the chosen socket. An embedded microfan inside the housing blows air toward the VRM and M.2 area, while FanXpert software lets the 450–2000 RPM fans run as low as 29.7 dBA under light loads.

Socket compatibility decides fit

The cooler supports Intel LGA 2066, 2011-3, 2011, 1700, 1366 and 115x plus AMD AM4 and TR4, although the TR4 bracket ships with the CPU package rather than the cooler box. Builders using LGA 1700 should verify they have the correct bracket before starting, as the extra hardware is not included in every retail pack.

How it compares

Measured against everything we stock in Liquid Cooling & AIO Coolers, at today’s prices. Recalculated every night.

Price $179.99
Pricier than about 87% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Brand nameASUS
Product lineROG Ryujin 240
Model name90RC0030-M0AAY0
Product typeLiquid Cooling System
Product colorBlack
Performance
Fan speed450–2,000 RPM +/- 10%
Fan airflow121.8 CFM
Size & build
Radiator size272 × 122 × 27 mm
Fan size2 Fan Slots (120 mm)
Block dimensions100 × 100 × 70 mm
Cooling block materialCopper
Radiator materialAluminum
Fan dimensions120 × 120 × 25 mm
Tubing materialSleeved Rubber tube
Shipping weight2.34 kg
Package size358 × 236 × 140 mm
Compatibility
Compatible socketsIntel LGA 2066 / 2011-3 / 2011 / 1700 / 1366 / 115x
AMD AM4 / TR4*
*The mounting bracket is bundled with TR4 CPU Package, not in the RYUJIN's package
In the box
In the boxROG RYUJIN 240 Liquid Cooler
Accesory Pack of Scews and brackets
2 × 120 mm Noctua iPPC 2000 PWM Fan
Thermal compound (pre-applied)
Quick Start Guide
Environment & compliance
Fan noise level29.7 dBA
More details
LED lightingRGB

Other versions of this model

1 more in the same range

Questions about this item

How can I confirm the 1.77" OLED panel is displaying real-time stats after installation?

Open the LIVEDASH software to view live CPU temperature, fan speed and custom animations on the OLED screen.

What comes in the box and which mounting hardware must be sourced separately?

The box includes the cooler, two 120 mm Noctua iPPC 2000 PWM fans, pre-applied thermal compound, screws, brackets for listed sockets and a quick-start guide; LGA 1700 brackets are not included and must be obtained from the manufacturer.

Which radiator size matches a case with dual 120 mm fan mounts?

The 240 mm radiator measures 272 mm by 122 mm by 27 mm and fits standard dual 120 mm mounting locations.

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