The MSI X58 PRO X58 PRO-E Motherboard MS-7522 is a high-quality ATX motherboard designed for Intel processors with the LGA 1366/Socket B socket type. It features 6 memory slots supporting DDR3 SDRAM memory type, as well as various expansion slots including PCI, PCI Express x1, and PCI Express x16. The motherboard also offers a range of input/output ports such as eSATA, SATA II, Ethernet (RJ-45), and USB 2.0. With features like on-board audio and multi-GPU support, this motherboard is a reliable choice for building a powerful computer system.