The Odyssey ARPVLP1 1U Rack Panel with Fine Perforations is a panel designed to fill empty space between your components while promoting air flow with its finely perforated surface. Although the openings promote airflow, they are still small enough to prevent dust and other foreign debris from readily entering your enclosure. The panel is constructed of metal and features a black finish. It is designed to fit in any standard 19" rack. This model occupies 1U of rack height.