For holding 482.6 mm (48,3 cm ( 19 inch )) network components or for attaching device bases and slide rails. Front 482.6 mm (48,3 cm ( 19 inch )) profile perforation, hole center distance 465 mm, rear 470 mm, tailored to the attachment of patch panels and Cable management rails. The mounting level can be positioned in 50 mm increments. Minimum level spacing 150 mm, maximum level spacing 350 mm.