The Cisco 6920 RateMUX is a specialized multiplexing device that optimizes Motion Pictures Experts Group (MPEG) transport streams to distribute multiple video, audio and data streams over a cable plant to digital set-top boxes (STBs). The Cisco 6920 RateMUX delivers a real-time, bandwidth management solution that allows cable, satellite and broadcast operators to add value to their programming and increase revenue, while minimizing the need to upgrade existing plant and STB equipment. Operators can bundle multiple programs into one optimized, multiplexed output stream, blending digital programming from a variety of sources-including satellite-based national services, locally-encoded content, and video servers containing movies-to create customized program lineups.