GOPEX1 is an expansion chassis configured for the X500. It provides 2 PCI Express card slots, creating a dedicated expansion option for X500 systems that need to add compatible PCI Express cards. The chassis is an expansion chassis rather than a standalone computer. Its supported hardware platform is the X500, and its defining hardware feature is its pair of PCI Express card slots. Use this chassis where an X500 deployment requires PCI Express card expansion. Order code GOPEX1 denotes the X500-compatible expansion chassis with 2 PCI Express card slots.