How tall is a rack-mounted server that is 2 rack units (2U) in height?

A rack-mounted server that is 2 rack units (2U) in height measures 3.5 inches (8.89 cm). The standard height of one rack unit (1U) is defined as 1.75 inches (4.45 cm). Therefore, when you multiply this height by 2 for a 2U server, it results in 3.5 inches. This standard measurement is crucial in data centers and server rooms, as it allows for efficient use of space and organization of equipment in rack enclosures. Understanding these height specifications is essential for IT professionals managing hardware installation and maintenance in server environments.