About Audio Switcher and Video Input Board
- 1x Composite Video (BNC)
- 1xS-video (4-pin mini-DIN)
- 4x Stereo Audio Input and 1x Stereo Audio Output (stereo "mini" jacks) to connect up to four audio sources attached to each of the maximum four windows in picture-in-picture mode. All four audio inputs can be routed and mixed in any number of ways to the audio output jack.