This item is provided by Crutchfield.com and includes free phone technical support for the life of the product. Details on how to take advantage of this service will be included with your package. Should you have any issues locating information on how to contact Crutchfield Technical Support, please contact this website's Customer Service department. This vented panel is designed for use with compatible Sanus CFR steel component racks . It allows air to pass freely through the cabinet, to help keep your components cool. What's in the Box: 1. Black steel vented rack mount blank panel (2U height)