MX-3GSDI-IB accepts SD-SDI, HD-SDI and 3G-SDI video signals with embedded audio on BNC connectors. Each channel also incorporates an SDI/HD-SDI/3G-SDI to HDMI/ DVI conversion for further switching and processing in the router frame. SDI input signals are automatically equalized and reclocked. 

The card also boasts an additional RCA Phono digital audio input connector accepting AES/EBU or S/PDIF digital audio per channel. Both Stereo PCM and 5.1 AC3 encoded formats are supported and are embedded into the video stream. Each input port contains a mini 16x8 channel audio crosspoint that allows de-embedding of up to 16 PCM audio channels from the SDI signal, switching them and re-embedding up to 8 audio channels onto the HDMI stream. Either SDI audio or S/PDIF audio can be embedded, however converting or mixing them is not possible. The SDI video pixel resolution and scan mode are maintained in the HDMI signal, whilst YUV to RGB and colour range settings are also supported.