It is most frequently used as a measurement of the overall height of 19 inch and 23 inch rack frames as well as the height of equipment that mounts in these frames whereby the height of the frame or equipment is expressed as multiples of rack units for example a typical full size rack cage is 42u.
12u rack dimensions in mm.
With a couple of additional inches and rack units you may also want to consider 13u server racks.
Wall mounted 19 cabinet 12u glass door 590 x 600 x 440 mm wall mounted rack cabin with a 12u working height and a depth of 370mm from the mounting bars to the rear wall of the cabinet.
Glass doors removable sides and cable openings both at the top and at the bottom make installation and usage of the cabinet easier.
One rack unit u is 1 75 inches.
When leasing space in a colocation facility or planning for an on site network cabinet or closet customers should focus on four key issues.
For ease in comparison depth and width are shown here with rounded external rack dimensions.
In practice devices are often made slightly smaller than the specified u value to allow a little space.
The rack unit is a standard measurement for server height.
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.
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.
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.
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.
To see the specific dimensions please view the individual rack page.
A rack unit abbreviated u or ru is a unit of measure defined as 1 3 4 inches 44 45 mm.
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.