The Soundcraft 5033340-01.v ViO/D21 Interface Card is a critical digital expansion component designed to integrate the powerful Vi series digital mixing consoles with a broader digital audio ecosystem via the Blu-Link protocol. It functions as a bidirectional bridge, enabling the console to send and receive high-channel-count audio to and from compatible stageboxes, digital recorders, and other networked audio devices. By installing this card into a dedicated slot within a Vi mixer, users significantly expand the console's physical I/O footprint far beyond its local inputs and outputs, creating a flexible and scalable audio network ideal for large installations, broadcast trucks, and touring sound applications.

The card establishes a 32-channel by 32-channel digital audio pathway, providing a full 32 discreet output sends from the console and simultaneously returning 32 discreet input channels. This symmetrical channel count ensures comprehensive integration for multitrack recording, connecting external effects racks, or interfacing with digital signal processors. The data transport is handled by the proprietary Blu-Link protocol, which is engineered for low-latency, high-fidelity digital audio transmission over standard Cat5e or Cat6 cable. This network-based approach simplifies cabling infrastructure, reduces weight and cost compared to traditional multicore analog snakes, and enhances system reliability.

Integration and control are seamless within the Vi console's architecture. Once installed, the card's I/O is automatically recognized and made available directly on the console's patching and routing screens, allowing engineers to assign channels with the same intuitive workflow as local sources. The ViO/D21 card is specifically engineered to leverage the full processing power and audio quality of the Vi platform, maintaining pristine signal integrity throughout the digital chain. This solution is essential for professionals who require a robust, expandable, and future-proof digital audio network centered on their Soundcraft Vi console, enabling complex setups with centralized control and pristine audio quality.