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Try the new builderASUS ROG RYUJIN 240









The ROG Ryujin is our flagship thermal solution available in big or bigger radiator sizes of 240 mm and 360 mm. This one is a showstopper with a stylish shroud infused with NCVM effects. The surface treatment and slash across the face match our recent motherboards designs, helping the cooler maintain a consistent aesthetic.

Liquid cooling is powerful, yet it doesn’t circulate air around the CPU socket like a traditional heatsink and fan. Airflow in this area is important because it’s home to the VRMs responsible for powering the CPU and often an M.2 slot for NVMe SSDs, so our engineers embedded a 60-mm fan inside the pump housing. This pushes air north, south, and west of the socket to lower the temperature of surrounding components. The benefits are clearly visible in the thermal images below, which show how heat is distributed around the socket with the auxiliary fan turned off and at its default duty cycle of 30%.
ROG Ryujin with its auxiliary fan off... ...and spinning at a 30% duty cycle
We designed the Ryujin to meet the thermal challenge of newer CPUs with ever-higher core counts. Noctua’s industrial-grade iPPC-2000 PWM fans are strapped to the radiator, blending high performance with low noise. The 120-mm fans generate a considerable 122 CFM of airflow at 2,000 RPM, but they’re also extremely efficient, with a 29.7-dB(A) acoustic footprint that’s much quieter than competing fans.