A 12U IT rack is a type of server rack
designed for organizing and housing information technology (IT) equipment.
The “U” in 12U stands for “rack units,” which is a
standard measurement for the vertical space within a rack. One rack unit is
equivalent to 1.75 inches (44.45 mm) in height.
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\nTherefore, a 12U IT rack has a vertical space of 12 x 1.75 inches, which
equals 21 inches (533.4 mm) in height. These racks are suitable for setups
with a moderate amount of IT equipment and are often used in small to
medium-sized server rooms, network closets, or data centers.
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\nHere are some key features and considerations for a 12U IT rack: