HP 500003-001 - CPU base enclosure (chassis bottom) - For discrete systems - Includes rubber feet Retail
HP 594021-001 - CPU base enclosure (chassis bottom) - Includes rubber feet - For use with the HP EliteBook 8440p Retail
HP 651372-001 - CPU base enclosure (chassis bottom) - Includes rubber feet which are heat-melded to the bottom of the unit Retail
HP 451712-001 - CPU base enclosure (chassis bottom) - Includes front LED board with cable and rubber feet Retail