It's called the Felix:

https://www.modulargrid.net/e/livestock-electronics-felix

I can't hype having this module enough, I use it in basically every patch now. I'll usually take different controller outputs, or envelope follower, and route it all over my modular with one set high, one low, and another one inverted.

It's a buffered mult with attenuvertors on each output. Soooo useful!