According to continuing modernization of our products, we have to modify upper assembly hole for ventilation units of free-standing cabinets. This change will happen shortly. An assembly hole will look like a break-out panel as well as cable inputs. This solution will reduce transportation risk and it also contributes to design. If you break-out the panel by mistake, you can use the same breaking-out panel of current product.
Ordering code of this break-out panel is: RAC-ZP-X19-X1.