Steel Side Panels for Installation on Your 50U 4-Post Open Frame RackThe SmartRack® SR50SIDE4PHD side panels feature pre-installed latches that attach to your busy 4-post open frame rack. Designed for the SR4POST50HD rack frame, this kit can be used in data centers and other applications to provide a clean look for end-of-row open frame racks. This side panel kit elevates the look of your 4-post rack and provides an added layer of protection from tampering or the usual cable mishaps. Note: This package only covers one side of an SR4POST50HD. You will need to purchase two kits to have two panels on each side of the rack.