I'm sorry, I became confused with another Build.
The 1155 WS MB you picked out will do SLI 3/4 way
4 (x16/x16/0/0 or x16/x8/x8/0 or x8/x8/x8/x8)
Is a bit hard to switch between vendor websites and read specs so my bad !!! :(
AVADirect is HUGE Website for sure !!