The Cisco Catalyst Ethernet and Fast Ethernet switching modules offer unparalleled physical interface flexibility, and support wire-speed, switched connectivity for unshielded twisted-pair (UTP), shielded twisted-pair (STP), and fiber-optic cable. Up to 12 48-port 10/100 modules can be added to a Cisco Catalyst 6500 Series platform representing industry-leading performance and scalability for the customers.The Inline Power 10/100Base-T Ethernet switching module enables the Cisco Catalyst 6500 Series to be the industry's first platform to support new Fast Ethernet features necessary for campus network convergence.