This kit isolates the PSU and case fans from the PC chassis thereby stopping vibration and resonance transmission. Structure born noise is prevented by the rubber cushions, helping to provide a quiet PC system. Eliminating vibration additionally helps to reduce the stress on system components. Universal siliconized rubber pins enable quick and tool free mounting of all popular size case fans. - Silencing gasket separates the PSU from the chassis.- PSU mounting screws with soft washers.- Siliconized rubber pins for anti-vibration case fans mounting.