Standard Rack Sizes In U

Newer server rack cabinets come with adjustable mounting rails allowing the user to place the rails at a shorter depth if needed.

Standard rack sizes in u. Server rack depth illustration of rack depth. 19 inch server racks can vary in qualities. Unlike height server rack depth is commonly measured in inches and has is much less variation in sizes. A u or rack unit is a measurement of the height of a piece of computer or network gear that is designed to fit into a standard 19 or 23 rack.

A rack unit abbreviated u or ru is a unit of measure defined as 1 3 4 inches 44 45 mm. The picture courtesy of dell inc shows some of the dell poweredge servers and examples of different rackmount units. Standard racks with widths of 23 inches 584 mm and 30 inches 762 mm are also made but rarely encountered by consumers. 1u occupies 1 75 inches 44 45 mm of vertical space.

The panel width is standardized at 19 inches 482 6 mm. Server rack cabinet enclosures on the other hand can be a non standard 18u or 37u. A single rack unit is exactly 1 75 44 45 mm in height although many manufacturers will make their equipment slightly smaller than this to ease installation into racks where things were. One rack unit 1u is 1 75 44 45 mm of vertical space or typically the equivalent of three rack hole spaces.

This three hole group is defined as a rack unit ru or sometimes just call a u. Symbol u or sometimes ru. Rack unit u or ru the hole spacing for standard 19 inch racks on the mounting flange is spaced in groups of three holes. A rack unit u or ru is a unit of measurement that describes the height of equipment designed to mount in a 19 rack.

0 03 in and the rail mounting holes must be 465 mm 0 8 mm 18 3 in. The rack or cabinet must meet the eia standard eia 310 d for 19 inch racks. A rack unit abbreviated as u less commonly seen as ru is a unit of measurement applied to equipment racks and the servers disk drives and other devices that they contain. What is a u or rack unit.

The front rack opening must be 451 mm wide 0 75 mm 17 75 in. One rack unit 1 inches of height of the equipment s rectangular front panel. Each u or rack unit is equivalent of 1 75 and is used as the standard terminology for describing sizes with 19 inch rack cabinets. Server racks can range from 0 to 50 inches in depth but are commonly seen at 24 and 48 inch depths.

A standard 19 inch server rack cabinet is typically 42u in height 600 millimetres 24 in wide and 36 inches 914 40 mm deep. Racks offer room for equipment that is 19 wide and have variable heights which are expressed in rack units.