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The Cisco 4000 Series, which includes the 4000-M, the 4500-M, and the 4700, offers solutions to the tremendous increases in network size, complexity, and bandwidth needs.
The Cisco 4000 Series defines the standard for modular access routers, offering a broader set of connectivity features and a more powerful internetworking software set than any other modular router system in the market. The modularity of the 4000 Series offers connectivity choices migration paths that protect legacy system investments as network needs evolve.