StarTech.com 1U 4-Post 19.5 to 38in Adjustable Mounting Depth Vented Rack Mount Shelf - Heavy Duty Fixed Rack Shelf - 330lbs / 150kg - 27.5in Deep - Add a high capacity adjustable mount depth vented shelf into almost any 4-post server rack or cabinet - Adjustable Mounting (19.5 to 38in) Rack Mount Shelf - Rackmount Server Rack Shelf - 27.5in Fixed Rack Shelf - 1U Shelf - 330lbs/150kg Capacity The ADJSHELFHDV 1U Adjustable Heavy Duty Vented Rack Mount Shelf lets you add a high-capacity, adjustable 1U shelf to virtually any standard 19-inch server rack or cabinet. This TAA compliant product adheres to the requirements of the US Federal Trade Agreements Act (TAA), allowing government GSA Schedule purchases. This heavy duty rackmount shelf can be adjusted from 19.5in to 38in (mounting depth) to fit your rack, while the vented design improves air flow and help to lower temperatures in the rack. Constructed using 1.2mm SPCC commercial grade cold-rolled steel, providing the ability to hold up to 113kg (250lbs) of equipment - a durable solution for storing large, non-rackmount pieces of equipment, heavy tools or peripherals in your rack or cabinet. Backed by a StarTech.com Lifetime warranty. More from the Manufacturer