<P>The SuperStack II Switch 3000 10/100 ATM kit aggregates Ethernet hubs and direct PC connections while providing connection to an ATM backbone. The SuperStack II Switch 3000 10/100 ATM kit, with 12 x 10/100BASE-TX ports and one ATM OC-3 (155 Mbps) port, provides support for the ATM Forum Standards for LAN Emulation (LANE 1.0), allowing existing Fast Ethernet and Ethernet LAN users to communicate transparently over a high-speed ATM backbone. Full-duplex operation gives wire speeds of 310 Mbps, thereby virtually eliminating network bottlenecks. </P>