Right, so it is a totally proprietary connection that only works for their own products, and you need adapters to make it compatible with other types?
Only the four-pin connector is proprietary, behind that it seems just argb.
Multiple retailers say it has 4 RGB channels on the product page. Maybe this is a mistake... here's the quote, same from OverclockersUK and UKwatercooling:
Quoted
"The four RGBpx LED outputs can be used to connect AquaPC's corresponding RGBpx strips and can also be controlled via the software"
It seems the text belongs to the Farbwerk360, wich has four RGBpx Channels/Connectors. The Quatro has one Channel and the Octo hast two channels.