You get PCI-E x16 slots (the long ones) and you get PCI-E x1 slots the very short ones, you can put a PCI-E x1 card in a x16 slot.
http://computertroublesolver.com/wp-content/uploads/2013/09/PCI_slots.jpg
The chipset defines what features the motherboard has, here is a good overview of the different chipsets and their features for the 1155 socket:
http://en.wikipedia.org/wiki/LGA_1155
Oh that's really helpful thanks. The MSI seems really decent for the price.