z77 slotIt features the Intel Z77 Express chipset. This socket LGA 1155 motherboard has four memory card slots, and it holds a maximum of 32 GB of DDR3 memory with a32GB. Expansion Slots. PCI Slots, 1 xPCI Express 3.0 *2.0 x16 slot (x16 mode) 1 xPCI Express 2.0 x16 slot (maximum x4 mode, compatible with