I didn`t know where to actually post this, but posted here since I run Linux.

My question is if VO supports a SLI connection, my GPU`s are 2 Nvidia GTX 960 Maxwell, running in Debian Jesse ?

Really depends more on whether the video driver supports it.

All new gen Nvidia GTX supports SLI, it`s kinda their thing. And linux got full support on drivers.

What you say is not entirely correct, older games or old game setups often doesn support 2 GPU`s, it will default to using 1, while newer games will use both and share video memory.

I`m amazed none of the devs have answered this by now though, it IS after all more or less a support section..

If you need a more immediate response from the devs, try the Support link over here on the menu.
<----------

It would probably also be helpful though to say what you've tried to get SLI working so far. I don't have a pair of Nvidia cards to test this with, but from their documentation, it looks like once enabled the drivers should be handling it from that point on.

http://us.download.nvidia.com/XFree86/Linux-x86/340.93/README/sli.html

Maybe another player with a nice Nvidia rig can chime in with something more helpful.

SLI from the binary blob is handled by the driver, exposing 1 huge GPU. You dont need support from the game.

Ok, thanks for the help guys, looks like I have some assembling to do then :)