And as marc79 says, it does not support SLI.
Great.
I recently bought a z77 mpower and a i5 cpu, only to find out the the z77's second PCI_E slot didn't work. Sent it back, and they didn't want to give me a replacement. Thus I had to get a new one, only to find out that the 1155 socket is out dated, and it's hard to get your hands on a good mobo for this socket. Bought a new i7 cpu and mobo yesterday, and now this. Brb, gonna buy a new one.