depth extender
StarTech.com Server Rack Depth Extender Review

Not only does it support a total weight load of 20 lbs (9 kg) in a 2-post installation and 130 lbs (59 kg) in a 4-post installation, but it also helps you save money by consolidating your equipment into a single space, eliminating the need for multiple racks. Say goodbye to protruding cables and the strain they cause, as this network rack extender kit keeps them neatly managed, 4 inches (10 cm) away from the rails. Designed and built for IT professionals, the StarTech.com Server Rack Depth Extender is the pro’s choice, backed by a 2-year warranty and free lifetime 24/5 technical assistance.