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. EIA 310 Compliant Our 2U rack shelf is EIA 310 compliant meaning it can fit most standard 19" 2 post racks. The included mounting brackets can be adjusted to accommodate different post depths, making this center mount rack shelf a universal solution for 2 post rack storage.Solid Steel Construction Constructed using SPCC commercial grade cold-rolled steel, this durable 2 post network rack shelf can hold up to 75 lb. (34 kg) of equipment - a perfect solution for storing non-rackmount equipment, tools, peripherals or accessories in your rack to keep them readily accessible. The Choice of IT Pros Since 1985 StarTech.com conducts thorough compatibility and performance testing on all our products to ensure we are meeting or exceeding industry standards and providing high-quality products to IT Professionals. Our local StarTech.com Technical Advisors have broad product expertise and work directly with our StarTech.com Engineers to provide support for our customers both pre and post-sales. Backed by a StarTech.com Lifetime warranty and free lifetime technical support.