The 2 Post Server Rack Shelf Allows You To Add A High Capacity Mid-Mount Fixed Shelf To Almost Any Standard 2 Post Server Rack - This 2U Rack Shelf Is Eia 310 Compliant Meaning It Can Fit Most Standard 19 In. 2 Post Rack - The 2 Post Network Rack Shelf Includes Mounting Brackets That Can Be Adjusted To Accommodate Different Post Depths - This Durable 2 Post Network Rack Shelf Is Constructed Using Spcc Commercial Grade Cold-Rolled Steel And Can Hold Up To 75 Lb. (34 Kg) Of Equipment