Units of length | Customary units of measurement in the United States

Rack unit

A rack unit (abbreviated U or RU) is a unit of measure defined as 1+3⁄4 inches (44.45 mm). 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 high, while equipment is typically 1U, 2U, 3U, or 4U high. (Wikipedia).

Rack unit
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From playlist O'Reilly Webcasts

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From playlist All about gears

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From playlist RailsConf 2017

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How different type of gear system works. ✔

More details visit: http://www.techtrixinfo.com/ Plz Join Our Face Book Page. http://www.facebook.com/pages/TechTrixInfo/271447906234307

From playlist Mechanical Engineering.

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From playlist Woodworking Projects

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From playlist Fanless on STH

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From playlist Radical Innovations

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Home Lab Build - P.1 - Building a NAS

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From playlist Project Stomper Videos

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From playlist Home Lab

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From playlist Hadoop Training Videos | Edureka

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From playlist Big Data Hadoop Tutorial Videos | Edureka

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From playlist Adventure Van

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From playlist IT'S HISTORY Feature Videos

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From playlist Server Processors on STH

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From playlist Scotland Ruby 2011

Related pages

List of unusual units of measurement | Horizontal pitch