The 304-90064-01 part of GOV is a telecom audio/video switching card for the T-Series XMP-1 and XMP-2 cabinet systems. It is used to switch between audio/video input signals and can support up to 8 connections for display, recording, or other audio/video applications. It has a universal rear panel port with RJ45, DB-9 and DB-15 connectors and supports a wide range of video resolutions including NTSC, PAL, SDI and HD. The card is equipped with a universal audio input interface that supports mono, stereo, and mic level signals. It also has a built-in micro-DSP processor and multiple video processing features like video brightness, gain, contrast, and focus control.