Erica Black VCO Expander essentially is advanced waveform mixer plus two octaves down suboscillator, and it allows you to explore wave design in brand new areas.
NB! This is expander module that can be connected only to Black VCO. It will not work as standalone eurorack module.

http://ericasynths.lv/en/shop/eurorack-modules/by-series/black-series/black-vco-expander/

• 5 mA +12V
• 5 mA -12V
• ? mA 5V
• 25 mm deep