The ClearOne USB Expander for Converge Pro 2 is a proprietary hardware accessory designed to extend the connectivity and functionality of ClearOne's Converge Pro 2 family of digital signal processors (DSPs). This unit adds dedicated USB audio interfaces to the DSP platform, enabling high-quality, multi-channel USB audio streaming to and from a connected computer. This integration is crucial for modern conferencing applications, as it allows the Converge Pro 2 system to function as a premium audio interface for soft codecs like Zoom, Microsoft Teams, Cisco Webex, and other Unified Communications (UC) platforms running on a PC or Mac. By connecting via USB, the Expander ensures low-latency, bi-directional audio transmission, carrying microphone inputs from the room to the computer for transmission and delivering remote participants' audio from the computer to the DSP for playback through the room's loudspeaker system.

The expander seamlessly integrates with the Converge Pro 2 DSP via a digital linking cable, appearing as a unified system within ClearOne's configuration software. It typically provides multiple channels of USB audio—often configured as stereo or multi-channel mixes—that can be precisely routed and processed by the powerful DSP engine before being sent to the USB bus. This allows the system designer to apply the DSP's acoustic echo cancellation (AEC), noise reduction, automatic mixing, and equalization to the USB audio stream, ensuring optimal audio quality for both local participants and far-end listeners. The unit is designed for rack-mount installation alongside the main DSP and is powered through the same connection, maintaining a clean and professional installation.

This accessory is an essential component for integrators building high-performance conference rooms, boardrooms, and distance learning classrooms around the Converge Pro 2 platform. It bridges the gap between the professional installed audio system and the computer-centric world of software-based video conferencing. By leveraging the DSP's processing for the USB audio path, it delivers far superior audio quality compared to a computer's built-in sound card or a consumer-grade USB speakerphone. For end-users, the USB Expander makes joining a call as simple as selecting the "ClearOne" audio device in their conferencing software, providing a seamless, professional-grade audio experience that is reliable and consistent for every meeting.