OCP Power rail, 21", for mounting the Power Supply Unit (PSU) in the OCP ORV3 Rack, OCP Power rail, 21" for R-OCP ORV3 rack, Carbon steel, galvanized, OCP Power rail, 21" For installation on left and right in OCP ORV3 Rack, 73269098, 2 pc(s), 2.646 lbs, 4028177998537, Snap-in rail for mounting a power supply unit (PSU) in the Rittal OCP ORV3 Rack.