z77 slotZ77 Pro3 · 100% All Solid Capacitor Desn · Di Power Desn · Supports Dual Channel DDR3 2800+(OC) · 1 PCIe 3.0 x16, Supports AMD Quad CrossFireX™ and CrossFireXASRock Z77 Extreme4 is a motherboard based on the Intel Z77 (Panther Point) chipset. Get specs, BIOS, documentation and more!