WS-X6816-10G-2T is 16-port 10 Gigabit Ethernet Fiber Module for Cisco Catalyst 6500 E-series switch with exclusively supported by Supervisor Engine 2T. WS-X6816-10G-2T equipped with WS-F6K-DFC4-E daughter card to deliver optimal performance up to a sustained 60 Mpps for L2, IPv4 and MPLS forwarding and 30 Mpps for IPv6 forwarding, and makes this module ideally suited for deployment in access and aggregation network in campus and data center.