This 42U, industry-standard 19" rack cabinet supports rack-mountable IBM eServer xSeries servers and options. Perforated front and rear doors provide improved airflow allowing for a fan-free rack environment. In addition to the EIA space, six sidewall compartments support installation of 1U power distribution units (PDUs) and switches without unnecessarily taking up valuable rack space. Front and rear rack doors and side panels all include locks, helping keep your servers secure. Front door hinge design allows door swing from either direction, providing flexible placement options. Side panels are not included with this version of the rack in place of side panels this rack includes a baying or attachment kit used to build rack suites. This 42U rack conforms to the industry-standard, EIA-310-D for 19" type A rack cabinets.