The 6800 Series 16-port 10 Gigabit Ethernet Fiber module provides up to 176 10 Gigabit Ethernet Fiber ports in a single Cisco Catalyst 6513-E Switch chassis, 352 10 Gigabit Ethernet Fiber ports in a Cisco Catalyst 6500 Virtual Switching System. The 6800 series 16-port 10 Gigabit Ethernet Copper module is suitable for Data center access and switch-to-switch connectivity. The primary use case for 10GBase-T is high-speed server connectivity.