The GIGABYTE GA-Z77X-UD3H is an Intel Z77 (LGA1155) ATX motherboard designed for 2nd/3rd Gen Intel Core processors. It features an advanced 8+4 phase VRM design with Ultra Durable 4 technology, supporting Dual Channel DDR3 memory up to 1600MHz (OC) across 4 DIMM slots with a maximum capacity of 32GB. The board provides 3x PCIe 3.0 x16 slots (x16/x8/x4) with Ultra Durable expansion slot armor, plus 4x SATA 6Gbps ports (2x from Z77 chipset + 2x via 3rd party controller) and 4x SATA 3Gbps ports for storage expansion. Networking includes Gigabit Ethernet via Realtek 8111F controller. Graphics outputs feature DVI-D, HDMI and DisplayPort supporting multi-monitor configurations. Additional highlights include 4x USB 3.0 ports (2 rear + 2 via header), 8x USB 2.0 ports, 8-channel HD audio with high-quality capacitors, and GIGABYTE UEFI DualBIOS with 3TB+ HDD support. The motherboard also features onboard power/reset buttons, voltage measurement points for overclockers, and PCIe slot/memory/motherboard armor for enhanced durability.