The NetRunnerâ„¢ Vertical Cable Manager Mounting Bracket is used when ganging a NetRunnerâ„¢ Vertical Cable Manager between two racks. This kit will provide additional support to the adjacent rack and can be used with any standard depth 3 inch channel rack. The steel bracket had a width of 3.71 inches and is black in color. Sold in packs of 4 brackets. WMPVCBE ENH VERTICAL CABLE MANAGER CENTER MOU