Q: What is a Universal Card? Does version 3.0 support Universal Cards?
A: Universal Cards are cards that have two keys, which provide a means for vendors to design one card that supports both 3.3V and 5.0V slots. Version 3.0 of the PCI specification removes support for 5.0V-only adapter slots. However, both the Universal Cards and 3.3V Cards continue to be supported by the Conventional PCI 3.0 specification.