If you are looking for a powerful and high-performance but concurrently noiseless case fan, you will find a so far uncommon, however well thought-out solution in the Silent Eagle models: \nIn comparison with conventional fans the unique surface structure of the Silent Eagle allows an improved airflow - at the same rotation speed. This principle is based on the surface texture of a golf ball, which helps to reduce air resistance and turbulence, resulting in particularly quiet operation while maximizing airflow volume. \nIn addition, the rounded edges of the Silent Eagle's frame offer a markedly improved air intake.\n\n• delivery includes: Silent Eagle 1000 / 2000, universal connection cable, rubber bolts, fan screws