Cooler Master MasterLiquid 240 Atmos II Liquid CPU cooler 240mm

The Cooler Master MasterLiquid 240 Atmos II is a high-performance all-in-one liquid CPU cooler engineered for modern gaming and productivity systems. Featuring a 240 mm aluminum radiator with dual ARGB SickleFlow Edge fans, it provides strong thermal dissipation while maintaining quiet operation. A low-profile pump design and Addressable Gen2 RGB lighting allow for stylish yet efficient cooling and aesthetic customization that can be synchronized with motherboard lighting ecosystems. Included mounting hardware supports a wide range of Intel and AMD sockets, making it a versatile choice for many builds.

Technical Specifications:



Cooler Type: All-in-One Liquid CPU Cooler




Radiator Size: 240 mm aluminum (approx. 277 × 119.2 × 27 mm)




Fans: 2 × 120 mm SickleFlow Edge ARGB




Fan Speed: ~690–2500 RPM ± 15%




Fan Airflow: Up to ~70.7 CFM per fan




Fan Static Pressure: Up to ~3.61 mmH₂O




Fan Noise Level: ≤ 27.2 dB(A) (typical)




Fan Bearing: Loop Dynamic Bearing (>160,000 h)




Pump Type: Dual-chamber cold-plate pump




Pump Speed: ~3200–3400 RPM




Pump Noise: <25 dB(A)




Tube Length: ~350–400 mm sleeved nylon




Lighting: Addressable Gen2 RGB (fans & pump)




Compatibility: Intel LGA 115x / 1200 / 1700 / 1851, AMD AM4 / AM5




Software: MasterCTRL for RGB and performance control