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2. Rack unit - Wikipedia

   en.wikipedia.org/wiki/Rack_unit

   Rack with sample component sizes including an A/V half-rack unit. A rack unit (abbreviated U or RU) is a unit of measure defined as 1 + 3 ⁄ 4 inches (44.45 mm). [1] [2] 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 ...

3. File:19" Server rack rail dimensions in mm.svg - Wikipedia

   en.wikipedia.org/wiki/File:19"_Server_rack_rail...

   English: A section of rail from a 19" server rack unit, showing how typical rack units 1U through 4U are distributed among the mounting holes. Dimensions in mm Dimensions in mm Date

4. File:Server rack rail dimensions.svg - Wikipedia

   en.wikipedia.org/wiki/File:Server_rack_rail...

   Date/Time Thumbnail Dimensions User Comment; current: 00:32, 6 August 2007: 318 × 609 (30 KB): Sakurambo~commonswiki {{Information |Description=A section of rail from a 19" server rack unit, showing how typical rack units 1U through 4U are distributed among the mounting holes. |Source=Own work, based on the public-domain image [[w:Image:Server-Rack-Rail-

5. Eurocard (printed circuit board) - Wikipedia

   en.wikipedia.org/wiki/Eurocard_(printed_circuit...

   Eurocard is an IEEE standard format for printed circuit board (PCB) cards that can be plugged together into a standard chassis which, in turn, can be mounted in a 19-inch rack. The chassis consists of a series of slotted card guides on the top and bottom, into which the cards are slid so they stand on end, like books on a shelf.

6. 19-inch rack - Wikipedia

   en.wikipedia.org/wiki/19-inch_rack

   A 23-inch (580 mm) rack is used for housing telephone (primarily), computer, audio, and other equipment though is less common than the 19-inch rack. The size denotes the width of the faceplate for the installed equipment. The rack unit is a measure of vertical spacing and is common to both the 19 and 23-inch racks.

7. Rack rail - Wikipedia

   en.wikipedia.org/wiki/Rack_rail

   The height of rack rail is determined by the number of rack units required for mounting the equipment. The design of racks and rack rails is specified in ECIA - EIA/ECA-310. Each rack unit (U) is equivalent to 1 + 3 ⁄ 4 in (44 mm). Most rack rail is in sizes from 2 units high (3 + 1 ⁄ 2 in or 89 mm) to 54 units high (78 + 3 ⁄ 4 in or ...

8. File:19 inch rack dimensions.svg - Wikipedia

   en.wikipedia.org/wiki/File:19_inch_rack...

   Size of this PNG preview of this SVG file: 599 × 600 pixels. Other resolutions: 240 × 240 pixels | 479 × 480 pixels | 767 × 768 pixels | 1,023 × 1,024 pixels | 2,045 × 2,048 pixels | 695 × 696 pixels.

9. List of PowerEdge servers - Wikipedia

   en.wikipedia.org/wiki/List_of_PowerEdge_servers

   The 19″ rack-servers come in different physical heights expressed in rack units or U. Most modern servers are either 1U or 2U high while in the past the 4U was more ...