Among the myriad of options available, two primary categories stand out: 19 inch rack server subracks and traditional server racks. . A 19-inch rack is a globally standardized frame used for mounting servers, network equipment, industrial controls, and audiovisual equipment. Originally defined by the EIA-310 standard, the rack specifies a front panel width of 19 inches (482. For more information, please visit 19 Inch Rack Server. . So what does the future layout of the data centre look like: OCP, Open19 or standard 19 inch layout in 600/800 mm racks, or a mixture of all three? Let's start by summarising what these terms mean. Traditional 19 inch What we think of as 'standard' 19 inch racks was formalised in EIA-310-D. . Related: Server Market Will Be Worth Nearly $196bn in 2027 – Omdia Server rack size is determined by three basic dimensions: Height: Since servers are usually stacked on top of each other inside a rack, rack height is the single most important factor in determining how many servers you can fit. . Yes, a 19-inch rack is an industry standard, as defined by the Electronic Industries Alliance (EIA).