Check the listing for details. 4 Pcs Server Rack Depth Extender, 1U Recessed Rack Extender Deep Mount Adapte.... Color: Black, Condition: New. Listed at 28.45 USD. Deeper rack space optimizes wiring and enhances efficiency. It enables wider compatibility for servers and hardware. A cost-effective, flexible alternative to full rack replacement. Adjust 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 efficiency Improve compatibility: Enable more models of servers and hardware components to be compatible in the same rack Boosts Scalability: Provides more space for potential hardware upgrades in the future, extending the lifespan of servers Application: Suitable for server racks, network cabinets and rack-mounted equipment