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DEFINITION - A U is a standard unit of measure for designating the height in computer enclosures and rack cabinets. A U equals 1.75 inches. For example, a 4U chassis is 7 inches high. A 40U rack cabinet is 70 inches high.

CONTRIBUTORS: Tux Macauley
LAST UPDATED: 27 Mar 2007

Read more about U:
- Applied-Control Concepts provides examples of enclosures and cabinets measured in U's .


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