PCIe 2 and 3

[Guest]

This is my mobo http://www.ebuyer.com/345353-msi-z77a-g43-z77-socket-1155-8-channel-hd-audio-atx-motherboard-z77a-g43

has PCIe 2 and 3 would it be possible to SLI two GTX 660 or similar?

 

[Guest]

its better to get one powerful card rather than sli/xfire. it look like it supports xfire but i havent found anything that about sli