Major service provider and enterprise customers have requested a cost-effective and time-to-market solution for E3 interfaces on the Cisco 7304 platform for network edge aggregation deployments. The Cisco 7304 6-Port E3 line card is a native line card designed for Cisco 7304 chassis only. It provides customers with 6-port E3 connections in a single interface slot, ideal for providing direct customer IP access or network-to-network connections where copper E3 is the only service to a remote point of presence (POP).