The Cisco Catalyst 4500 6-port E-Series 10 Gigabit Ethernet line card (2.5:1 oversubscribed) can be deployed for high-performance 10 Gigabit Ethernet aggregation in the campus, in small to medium networks as a core switch, or for high-performance wiring closets where additional 10 Gigabit Ethernet uplinks are required. The Cisco Catalyst 4500 E-Series 6-port 10 Gigabit Ethernet line card supports standard X2 optics as well as the Cisco TwinGig modules.