A rack unit (abbreviated U or RU) is a unit of measure defined as 44.50 millimetres (1.752 in). ... For example, a "4U half-rack" DVCAM deck would occupy 4U (7 in) height × 9.5 in width, and in theory..
6u Rackmount Wall-mount cabinet secures and organizes 6U of 19-inch rack equipment in network closets, classrooms and other locations with limited floor space. ... The SRW6U SmartRack 6U Low-Profile S..