The FYBOPTWU Fiber Optic Rack Mount Enclosure Box is a sturdy metal box with three slots designed to hold LGX adapters. It has a rack unit width of 19 inches, making it compatible with servers. The black-colored enclosure is easy to mount using the rack mount design. This product, weighing 3.64 kilograms, is manufactured in China and requires no assembly. It is ideal for organizing and housing fiber optic components in a server room setting.