3X-DEFPA-MC Universal PCI to Dual Attachment Station (DAS) FDDI Controller using a pair of ANSI copper TP-PMDs (RJ45) and supporting up to 100M of CAT 5 Unshielded Twisted Pair (UTP) copper cable between stations. This DAS adapter: supports high performance full-duplex operation when connected point-to-point with a cooperating full-duplex FDDI switch or adapter and auto-configures to support high availability "dual-homed" configurations.