RMU: 6U
Rack itself a good value. Assembles quickly with the 4 screws provided. Also comes with a bag of 4 wall anchors suitable for concrete walls, a nice touch. HOWEVER, it also comes with a bag of screws apparently intended to mount equipment, but... rack is threaded for 10-32 screws... provided screws were "other". Since rack sales description did not mention hardware included, I'll give them a pass on this.