Not only control voltages can be used to "open" the VCA and to let the audio pass through, there is also a manual gain control. This is pretty handy when you want to modulate the VCA with a bi-polar voltage - just turn up the gain haf-way - this way you can use the CV's negative signal parts to close the VCA.
As the module has two signal inputs often you don't need a mixer before the VCA.
2x audio input, 2x cv input, 1x audio output
3U Eurorack module, 8HP wide, 45mm deep
Current draw 20mA