TRIPP LITE's SR42UBSD1032 is a shallow depth rack enclosure. Its 32 in depth (825 mm) is ideal for shallow-depth audio / video equipment, smaller equipment installs or areas with limited floor space. It houses 3000 lb of standard 19 in rack equipment in 42U. Its front and rear pairs of vertical rails have threaded 10-32 mounting holes that are adjustable in qter in increments from 4 – 27 in. Adjustment is quick and an easy-view depth index ensures consistent rail placement without requiring time-consuming measurements. Each rack space within the enclosure is numbered for ready reference.