The Cisco Catalyst 6500 Series provides the broadest selection of 10/100 and 10/100/1000 Ethernet media, Power over Ethernet (inline power) options, densities, performance, interoperability, and chassis deployment options. From basic wiring closets, small campus distribution/core layers, to high performance data centers, the Catalyst 6500 series 10/100 and 10/100/1000Mbps modules scale from 16-ports up to 1152-ports in a single Catalyst 6500 chassis. Catalyst 6500 10/100 and 10/100/1000Mbps modules offer:This product is the Catalyst 6500 48-port 10/100/1000 RJ-45 CEF720 interface module.