It is mandatory to use a shock pallet when shipping racks with equipment installed. Please see the QuickSpecs for additional information: http://h18000.www1.hp.com/products/quickspecs/12402_div/12402_div.html (Worldwide). For additional information regarding Rack Cabinets, please see the following URL: http://www.hp.com/go/rackandpower. The increasing power of new high-performance processor technology requires increased cooling efficiency for rack-mounted servers. The 10000 G2 Series Racks provide enhanced airflow for maximum cooling, allowing these racks to be fully loaded with servers using the latest processors.