4 Pcs Server Rack Depth Extender, 1U Recessed Rack Extender Deep Mount Adapter Kit for Network RackAdjust depth: The Server Rack Depth Extender is designed to increase or decrease the installation depth of the device by 4 inches.Easy wiring: Deeper rack space provides more space for wiring, helping to reduce cable confusion and improve wiring efficiencyImprove compatibility: Enable more models of servers and hardware components to be compatible in the same rackBoosts Scalability: Provides more space for potential hardware upgrades in the future, extending the lifespan of serversApplication: Suitable for server racks, network cabinets and rack-mounted equipment