As the name suggests, the MSI Z77A-GD55 comes equipped with Intel’s upcoming Z77 chipset to support Intel’s Ivy Bridge 22nm processors. It has an LGA1155 socket which get its power from a 9-phase power system. As other LGA1155 motherboards, it has four DIMM slots which support up to 32 GB of DDR3 memory in dual channel mode. It has three PCI Express 3.0 x16 slot (one of them is wired for x8) and four PCI Express x1 slots. It supports both NVIDIA SLI and AMD Crossfire.