PCI Express Bus SPEC V2.0 compliant

[Atomsplitter]

On the MSi 880GM-35 motherboard specs for the expansion slots it says
1 PCI Express x16 slot with x16 operation (PCI Express Bus SPEC V2.0 compliant)

Does this mean its a PCI Express 2 slot or a PCI Express 1 slot?

 

[ViRGE]

PCIe 2.

 

[Atomsplitter]

Thanks Virge.