The Polycom VSX 7000 Accessory Box is an external connectivity and expansion unit designed for use with the Polycom VSX 7000 series of professional group video conferencing systems. It serves as a centralized interface hub, providing additional input/output ports that are not available on the main codec unit, thereby extending the system's connectivity options for various peripherals and room integration components. The accessory box typically facilitates connections for content sharing (such as from a laptop via VGA), auxiliary video sources, additional microphones, and control system interfaces, enabling a more flexible and comprehensive meeting room setup.

By offloading these connections to a separate box, the system maintains a cleaner installation with shorter cable runs to frequently used devices like the presentation computer. The accessory box often includes features like a built-in switcher for selecting between different content sources. It connects to the main VSX 7000 codec via a dedicated multi-pin cable, carrying video, audio, and control signals. This modular approach allows integrators to tailor the video conferencing system to the specific needs of the conference room, supporting presentations, multiple camera angles, and integration with room control systems.

Housed in a compact enclosure, the accessory box is designed for discreet placement under a table or within an equipment rack. It is an integral part of creating a professional, user-friendly video conferencing environment with the Polycom VSX 7000 system, enhancing its functionality and making it adaptable to diverse meeting scenarios and room designs.