The Arctic Liquid Freezer II 420 RGB is a multi-compatible all-in-one liquid cooler with RGB lighting. The Liquid Freezer II combines the efficient PWM pump of the Liquid Freezer II with RGB fans optimized for static pressure. This achieves a completely different aesthetic with extremely low noise levels and equally low temperatures. The water pump has been designed to reduce humming and increase efficiency. Like the other components, it is also PWM controlled. This results in a significantly lower noise level under low and typical loads, as well as much lower power consumption. Unlike most other all-in-one liquid cooling manufacturers, Arctic uses 38 mm thick radiators with a high fin density. This allows for a larger volume of water to be used in the loop and significantly increases the cooling surface area. The fiber-reinforced, long EPDM tubing of the Liquid Freezer II enables installation in large cases and effectively prevents the evaporation of the coolant, so there is no need to worry about refilling the compact liquid cooling system.