The standard width of a mountable server rack established by the Electronic Industries Alliance (EIA) is 19 inches.
What is 19 inch in mm?
A 19-inch rack is a standardized frame or enclosure for mounting multiple electronic equipment modules. Each module has a front panel that is 19 inches (482.6 mm) wide.
The 19 inch dimension includes the edges or ears that protrude from each side of the equipment, allowing the module to be fastened to the rack frame with screws or bolts.
Technically, this 19-inch measurement refers to the width of the front panel of the mountable module that slides into the rack, while the actual server chassis width needs to be less than 17.75 inches (450.85mm) to fit within the frame.
Deligreen / Battery Queen stackable battery case suits the 19'' server rack.
To choose the right server rack you have to take the following dimensions into consideration:
A standard 19-inch server rack cabinet is typically 42u in height, 600 millimetres (24 in) wide, and 36 inches (914.40 mm) deep
19-Inch Rack Dimensions: Height, Width, Depth
While the width of server racks is fixed at 19 inches, the height and depth of modules can vary considerably depending on what you’re trying to install in the data center rack. While depth is not standardized, common depths range between 24 inches and 48 inches. The reason for this depth is likely because the standard floor panel in a data center is 24 inches by 24 inches. Height is typically measured in standardized rack units of 1.75 inches per U. A good rule of thumb when considering how much space you have in a rack for a server module or accessory is how many units it takes up.