The AT-VME-PMC-CAR is a single slot, double height (6U) VME64x, extended VMEbus card with two separate PMC slots. The AT-VME-PMC-CAR uses an onboard industry standard Tundra chip (Tsi148) providing the bridge between the VMEbus and PCI-bus. The VME-PMC-CAR fulfils the requirements of the VME64x extension plus the Interface for Rear I/O. Each PMC-slot is in conformance with the Draft Standard Physical and Environmental Layers for PCI Mezzanine Cards (P1386.1). The card comes standard with easy to read front panel configuration displays, and two single width PMC slots. The VME PMC carrier allows the user to build powerful and cost effective VME systems by increasing board density. The AT-VME-PMC-CAR is designed to plug all standard PMC cards with a maximum PCI-bus width of 64bit operating at 66MHz. The AT-VME-PMC-CAR carrier board supports the +3.3V PCI-bus signaling; hence only +3.3V tolerant devices may be used.