Closes off unused rack spaces to prevent hot air from circulating valuable equipment. Reduces operating costs, improves performance, and provides longer lifespans for equipment. These blanking panels take up 2U of space and create a clean and professional look by covering empty rack spaces and visible cables, for a more organized server room. The rack-mount panels feature a solid design that helps guide airflow down the back of your equipment. This helps expel any operating heat from your rack-mounted equipment. Made with durable 18 gauge cold-rolled steel with a black powder-coat finish, this filler panel is designed to hold up to wear and tear while protecting your equipment. This filler panel comes with four cage nuts & screws for secure and easy installation. Fits on any standard 19 in. server rack, cabinet, and bracket, saving you time and hassle.