LEPA takes advantage of the fluid mechanics in order to boost the cooling performance of case fans: The Vortex frame generates a powerful air twirl that concentrates the fresh air and leads it more directly to the hot spots inside the system. The fans achieve an extremely high static pressure while remaining a low noise level. That way, these fans are an ideal solution for effective and exact cooling, for CPU coolers or radiators. The LEPA fan series Vortex, Casino 4C and Casino 1C are equipped with the Vortex frame.
German hardware magazine PC Games Hardware introduces the Vortex effect in a >> video.