The MSI Z77A-G43 is an Intel Z77 (LGA1155) ATX motherboard designed for 2nd/3rd Gen Intel Core processors. It features the Intel Z77 Express chipset with support for Dual Channel DDR3 memory up to 1600MHz across 4 DIMM slots with a maximum capacity of 32GB. The board includes 1x PCIe 3.0 x16 slot for graphics cards, plus 2x PCIe 2.0 x1 slots and 3x PCI slots for expansion. Storage conNECtivity consists of 4x SATA 6Gbps ports (2x from Z77 PCH + 2x via ASMedia controller) and 2x SATA 3Gbps ports, supporting RAID 0/1/5/10 configurations. Networking is handled by a Realtek RTL8111E Gigabit LAN controller, while audio is provided by Realtek ALC887 HD Audio with 7.1-channel support. Rear I/O includes 2x USB 3.0 ports (via Etron EJ168 controller), 4x USB 2.0 ports, PS/2 combo port, D-Sub and DVI-D video outputs (utilizing Intel Integrated Graphics), and 6 audio jacks. The motherboard features Military Class III components with solid capacitors and enhanced PWM design for improved durability and power efficiency. Additional features include Click BIOS II UEFI interface, OC Genie II one-button overclocking, and support for Intel Smart Response, Rapid Start, and Smart ConNECt technologies. The ATX form factor (30.5cm x 22.0cm) provides ample space for system builds with comprehensive cooling options including multiple fan headers.