VPX (Virtual Path Cross-Connect, also known as VITA 46, refers to a set of standards for connecting components of a computer (known as a computer bus), commonly used by defense contractors.

VPX was intended to address shortcomings in scalability and performance of on both side of the bus to bus bridging technology. The goal was to include newer faster VMEbus standards and new generations of PCI bus standards.

EXC-8000ccVPX Multi-Protocol Board
The EXC-8000ccVPX is part of the 8000 family of multiprotocol carrier boards. This conduction cooled VPX interface board has a PCI Express host interface and can support up to four independent removable modules and 10 on-board Discrete channels.
Data Sheet 8000ccVPX Carrier Board SW 8000ccVPX HW