The latest PCI Express technology links the PCIE-PCIX-72 expansion system with PCI-X systems. A 4x PCI Express adapter plugs into a PCI-X slot. A PCI Express cable then links the adapter to a 5U 19-in. rack-mount expansion chassis with seven 64-bit slots. A 5-meter cable is included. Pricing starts at $1895. A low-profile adapter is available as well.