Question

what is meant by 1u?

Answer 1

U is the standard unit of measure for designating the vertical usable space, or height of racks (metal frame designed to hold hardware devices) and cabinets (enclosures with one or more doors). This unit of measurement refers to the space between shelves on a rack. 1U is equal to 1.75 inches.

Answer 2

Hi friend,

1u refers to atomic mass of hydrogen.
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