The MSI B75A-G43 is an ATX motherboard designed for Intel LGA1155 socket processors, supporting 2nd and 3rd Gen Intel Core i7/i5/i3/Pentium/Celeron CPUs. It features the Intel B75 Express chipset with support for DDR3 memory at 1600/1333/1066MHz frequencies across 4 DIMM slots, reaching a maximum capacity of 32GB. The board provides 1x PCIe 3.0 x16 slot for graphics cards, plus 2x PCIe 2.0 x1 slots and 1x PCI slot for expansion. Storage conNECtivity includes 1x SATA 6Gb/s port and 5x SATA 3Gb/s ports with RAID 0/1/5/10 support. Networking is handled by a Realtek 8111E Gigabit LAN controller. Rear I/O features include 2x USB 3.0 ports, 4x USB 2.0 ports, PS/2 keyboard/mouse combo port, D-Sub and DVI-D video outputs, 6-channel audio jacks, and an RJ-45 LAN port. The motherboard also includes MSI's Military Class III components for enhanced durability, Click BIOS II for intuitive UEFI control, and supports Intel Rapid Start and Smart ConNECt technologies.