MoBos are same everywhere, the reason Z97 PC MATE does NOT support SLI is that the 2nd x16 slot runs at x4. SLI is not supported unless this config is x8/x8 atleast, whatever be the MoBo. A good way to look at this is to verify what speed the PCIe x16 slots are running at, particularly the 2nd one, at x8 or x4.
A x16/x4 MoBo will not support SLI anywhere, you're out of luck with this one.