VX3800 3U VPX/VPX-REDI PMC/XMC Carrier Card VX3800 is a 3U VPX carrier designed to support any standard XMC/PMC mezzanine and expand I/O flexibility to VPX systems. It provides one XMC/PMC site, alternately used as a PCIbus 32-bit/66 MHz or as an XMC site with either a x4 or a x1 PCI-Express link to the VPX backplane. VX3800 is a member of Kontron's VITA 46 VPX Ecosystem which facilitates the implementation of VPX through an integrated offering.