be quiet! BG001 Silent Base 800 Case, Orange Outstanding performancethanks to an innovative construction that assures excellent cooling efficiency and a perfect air-circulation at well-known whisper-quiet operation Excellent usabilitywith simplest mounting and tool-free fitting of drives, an intelligent and adaptable cable solution, and air intake filters that are easily accessed for cleaning Three pre-installed Pure Wings 2 fansfeature nine airflow-optimized fan blades and are decoupled from the case to move heat out with a minimum of vibration and the quietest possible operation