A cable management device and assembly includes an electrical structure having plurality of connectors for receiving connectors of a plurality of cables. A fixed support bar is spaced from and aligned with the connectors. A plurality of cable retainer members are coupled to the support bar for managing and aligning the bundle of cables coupled to the connectors. The cable retainers have a first open recess at a first end with a central axis extending in first direction, and a second open recess at a second end with a central axis extending in a second direction perpendicular to the first central axis. The first open recess mates with the support bar to slide along the length of the bar and rotate or pivot around the bar to orient the cables in a selected position and pattern. The second open recess has a dimension for coupling with the respective cable.