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. The Sanus CADR4-B1 is a sliding drawer designed for use with compatible Sanus CFR2115 or CFR2127 steel component racks. This durable metal drawer is 7" deep and features a powder-coated finish. What's in the Box: 1. Rack mounted sliding drawer (4U height)