GAMDIAS CHIONE M4-240 Black AIO Liquid Cooler – 240mm Dual 120mm ARGB Fans, 2.1" LCD Display Block, PWM Pump up to 5400 RPM, Universal Socket Support

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2.1″ rotatable LCD screen on the water block that shows real-time CPU temp, fan speed, and pump RPM
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Patented in-line PWM pump with peak speed ~5400 RPM for strong coolant circulation
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Dual 120mm ARGB PWM fans with airflow ~69.01 CFM and static pressure ~2.37 mmH₂O
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Radiator 32mm thick, new cooling route system, enhanced fin density for improved dissipation
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Broad socket compatibility including Intel LGA1700/1200/2011-v3 and AMD AM5/AM4 versions; software: CHIONE CAST LITE; ARGB sync supported
The GAMDIAS CHIONE M4-240 Black is a high-performance AIO liquid cooler designed to meet both the demands of enthusiasts and the desires of builders who live for aesthetics. With its feature-rich design, including a rotatable LCD display, dynamic lighting, thick radiator, and software control, the CHIONE M4-240 doesn’t compromise on either style or substance.
Right from the water block, the M4-240 impresses. The rotatable 2.1-inch LCD screen gives real-time insights — you can view CPU temperature, fan speed, and pump RPM without leaving your setup. That visibility is great for users who monitor system performance constantly, especially when pushing high loads or overclocking. Through the CHIONE CAST LITE software, display elements and units (Celsius or Fahrenheit) can be customized, making the cooler feel more like an instrument panel than a passive component.
Thermal performance is a core strength of this model. It uses a patented in-line PWM pump capable of up to ~5400 RPM. That powerful pump, combined with a 32mm thick radiator and denser fins, ensures it can handle substantial CPU heat loads efficiently. Builders who care about stability under load will find the M4-240 keeps temperatures competitive while controlling vibration and noise.
The fan setup amplifies that capability. Dual 120mm ARGB PWM fans run between 800-2000 RPM, delivering airflow of ~69.01 CFM with static pressure around 2.37 mmH₂O. These fans use hydraulic bearings for smoother rotation and quieter operation. Under light load, the system remains fairly quiet; under heavy load, there’s headroom for strong cooling.
Build aesthetics are also meticulously considered. The radiator is strengthened with thicker fins for better thermal efficiency. The cooler uses a new cooling route system to optimize fluid flow, and the base plate is copper for better contact with the CPU. Teflon tubes, sleeved with nylon braiding, add durability while keeping a clean look. RGB lighting is fully addressable and compatible with motherboard sync options.
Installation is broad: it supports multiple Intel sockets (including LGA1700, LGA1200, older ones) and AMD sockets (AM5, AM4, etc.). Mounting hardware is included, and the rotatable block helps with cable routing and visual alignment. For builders who want both performance and a statement piece, this cooler hits the sweet spot. Maintenance is eased by standard parts and accessible radiator and fan cleaning routes.
Overall, the GAMDIAS CHIONE M4-240 Black delivers excellent thermal performance, smart display info, aesthetics, and wide compatibility. It’s suited for those who want a cooler that both performs hard and looks premium.