A cable management assembly is provided that facilitates routing of cables from a rack, frame or cabinet. The cable management assembly may be mounted in a vertical or a horizontal orientation, and generally includes a flange, a pair of fingers extending outwardly relative to the flange and defining a routing region therebetween, at least one mounting element extending rearwardly relative to the flange; and a polygonal locking face mounted with respect to the at least one mounting element. The cable management assembly may be mounted with respect to a rack structure by introducing the polygonal locking face to a correspondingly shaped aperture and rotating the cable management assembly, e.g., by a quarter turn.