Cooling Reviews Watercooling

Cooler Master MasterLiquid ML240L RGB in review

At the end of 2017, Cooler Master introduced the MasterLiquid ML240L RGB, the illuminated answer to the ever-increasing popularity of RGB components. At its core, however, the MasterLiquid 240, which was released at the beginning of 2017, remains identical with identical technical data. More than two years later, the ML240L RGB still bravely stays in the top 10 of the most popular 240mm AiO water coolers on the German market and captivates with its low price of sometimes less than 50 euros. For the release of the Ryzen 3000 CPUs in combination with certain motherboards, the AiO was even available for free!

The availability is still very good at the end of 2019, three versions are offered – as schom with the predecessor:

MasterLiquid ML120L RGB (120mm)

Cooler Master MasterLiquid ML120L RGB (MLW-D12M-A20PC-R1)


MasterLiquid ML240L RGB (240mm)

Cooler Master MasterLiquid ML240L RGB (MLW-D24M-A20PC-R1)


MasterLiquid ML360 RGB (360mm / TR4 socket only)

Cooler Master MasterLiquid ML360 TR4 RGB (MLX-D36M-A20PC-T1)

galaxus1-2 Wochen124,99 €*Stand: 21.04.24 17:07
*Alle Preise inkl. gesetzl. MwSt zzgl. Versandkosten und ggf. Nachnahmegebühren, wenn nicht anders beschriebenmit freundlicher Unterstützung von


In this review I refer to the prices of November 2019, possibly different current prices are to be interpreted by myself.

Specifications ML240L
Pump: 2100 RPM – Copper Coldplate (rough)
Fan: 650 to 2000 RPM – hydraulic bearing – 4 pin connection
Radiator thickness: 27mm
Airflow per fan: up to 113 m3/h
Air pressure per fan: up to 2.34 mmH2O
Noise level: 6 – 30 dBA
Hose length: 300mm
More data on the product page

A few comments in advance:
• Thermal paste is not pre-applied
• The coldplate is quite rough compared to other AiO, complete removal of the thermal paste after removal is rather idle
• The fan holders are padded with foam rubber
• Installation with AM4 possible without an extra backplate

Packaging / Scope of delivery
Here, too, the typical AiO packaging is used: cardboard box with corresponding recesses, pump block, radiator and fan bagged. In addition to the small instructions for installation, Cooler Master also includes a 12V RGB controller with physical buttons as well as a 1-to-3 RGB splitter and a Y splitter for 4 pin fans. Thus, you can enjoy the RGB lighting even with older boards without LED headers. In-house thermal paste is of course also present (not shown here in the picture).

Packaging A

Even if it does not affect the performance or the tightness, it can disturb one or the other quite visually:

Minor damage to the radiato
Small damage to the radiator in detail