ASRock Extended ATX DDR4 Motherboard X99 OC Formula/3.1 LGA 2011-v3 Chipset: Intel X99 Memory: 8x DDR4-3400+(OC)/ 2933(OC)/ 2800(OC)/ 2400(OC)/ 2133 DIMM Slots,Quad-Channel, Non-ECC, Unbuffered,Max Capacity up to 128GB Slots: 5x PCI-Express 3.0 x16 Slots (single at x16, dual at x16/x16, triple at x8/x8/x16, quad at x8/x8/x8/x8), 1 x Half Mini-PCI Express Slot Multi-Graphics: Supports AMD Quad CrossFireX, 4-Way CrossFireX, 3-Way CrossFireX, CrossFireX and NVIDIA Quad SLI, 4-Way SLI, 3-Way SLI, SLI Technology SATA: 10x SATA3 Ports, Support RAID 0, 1, 5, 10; 1 x SATA Express 10 Gb/s Connector Form Factor: EATX