HP 595772-001 - CPU base enclosure (chassis bottom) - For use with EliteBook 8540w models without an RJ-11 cap - Includes rubber feet Retail
HP 460702-001 - CPU base enclosure (chassis bottom) - For use with discrete products - Includes rubber feet Retail
HP 595774-001 - CPU base enclosure (chassis bottom) - For use with EliteBook 8540p models without an RJ-11 cap - Includes rubber feet Retail
HP 651372-001 - CPU base enclosure (chassis bottom) - Includes rubber feet which are heat-melded to the bottom of the unit Retail