The MY8-SDI-ED is an HD-/SD-SDI embed/de-embed Mini-YGDAI card for use with compatible Yamaha professional audio equipment. The card enables you to de-embed up to two audio groups (four channels per group; total eight channels) to a host device, by selecting them from four audio groups (total 16 channels) that have been embedded into an SDI signal. This card also enables you to embed the audio output signals of a host device into one or two audio groups to be output as an HD-/SD-SDI signal.