True ! Feels pretty good afterwards too , huh ? <| sep |> Stacking the switches is going to make cable management difficult . Can you afford even 1 U between the switches for 1 U horizontal cable management pieces ? I ' d say you should put 1 U cable management between every patch panel and between every switch . Think of it this way , every cable should come in from the top or the bottom and it should never cross a device like this . UPS units always need to be on the bottom since these dictate the rack ' s center of gravity . From top to bottom usually fiber tray security appliance router patch panel switch servers UPS . Add cable management between everything if practical . I ' d order vertical cable management from the same manufacturer of your rack .