The 4I71 PC/104-plus card that combines a 100BaseT Ethernet MAC with a 8 port switch.  The 4I71 makes it easy to connect multiple embedded system cards without the awkward power or mechanical problems with consumer type Ethernet switches.  The 8 Ethernet ports support autonegotiation allowing connections with half and full duplex, 10 and 100 BaseT devices plus auto MDX, eliminating the need for crossover cables.  The Ethernet MAC is a Micrel 8842 which has drivers available for most operating systems. The switch has sufficient bandwidth to support full duplex wire speed connections on all ports.  A switch only version of the 4I71, the 4I71S is available if an additional MAC is not needed. The 4I71S-NFT-NOPCI-T/B version has no PCI or PC/104 connectors and has a 3.5mm connector for power.