In addition to standard signal I/O frames, the DRS M-Series and E-Series system also includes an option card for embedding (MUX-3G Card) digital audio with SDI video to marry the video routing capability of the Cheetah Video Matrix Routers with the audio routing capability of the Cheetah DRS Audio Router. The DRS MUX card is compatible with SDI video signals up to 3Gbps and compliant with SMPTE 259M, 292M and 424M. Audio may be embedded to a SD/HD/3G-SDI signal The Cheetah MUX-3G card provides 16 SD/HD/3G-SDI video output channels and embeds any of up to 256 audio signals selected from DRS input sources to any of the SD/HD/3G-SDI video output signals. Any audio input signal to DRS – AES, embedded, MADI or analog – can become the input source for the video MUX card for embedding onto a video output signal. In DRS system configuration the MUX-3G card functions as a signal output frame. Full digital signal processing and stereo remedies may be applied to embedded audio signals.