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.
12u rack dimensions in mm.
Rack units for equipment is considered maximum dimensions.
For ease in comparison depth and width are shown here with rounded external rack dimensions.
The industry standard for data centers the 42u universal server rack is compatible with a wide variety of servers and rack mountable networking equipment including dell hp austin hughes ibm kendall howard great lakes martin enclosures chatsworth and apc products.
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.
The rack unit is a standard measurement for server height.
The 42u rack is completely customizable and can handle even the heaviest loads up.
To see the specific dimensions please view the individual rack page.
When leasing space in a colocation facility or planning for an on site network cabinet or closet customers should focus on four key issues.
19 rack cabinet 12u 600 mm suitable for mounting all sorts of devices in standard 19 rack housings as well as some devices not compliant with this standard.
Glass doors removable sides and cable openings both at the top and at the bottom make installation and usage of the cabinet easier.
A rack unit abbreviated u or ru is a unit of measure defined as 1 3 4 inches 44 45 mm.
Ideal for installing headends for various kinds of equipment also in home systems.
A device specified as 2u for example may in reality measure 3 44 inches in height rather than the 3 5 inch multiple of 1 75.
In practice devices are often made slightly smaller than the specified u value to allow a little space.
With a couple of additional inches and rack units you may also want to consider 13u server racks.