The RKPNLHV2U 2U Hinged and Vented Blank Rack Panel mounts to a standard 19 2 or 4-post rack to improve the organization and appearance of your rack, while maintaining easy access and airflow. The hinged blanking panel is reversible, meaning it can be installed to open from either the left or right side for easy access to the inside of your rack, while still covering the unused rack spaces for a professional look. The vented rack panel is made of high-quality steel for long-term durability, plus the vented design allows for unobstructed airflow through your rack. For easy installation, this rack panel comes complete with rack installation screws (10-32).