Thanks for the reply. Just trying to drive more monitors, I've Matrox M9140 installed, and I've a second one if I can find a way to connect it.
I've a Seasonic S12II-430 Bronze, 430 Watt PSU. I can't find the requirements for the Matrox, but it's passive and meant to be low power consumption.
I just need something like this as a connector?
https://www.startech.com/eu/Cards-Ad...pter~PEX1TO162