ASRock EATX DDR4 Motherboard X99 OC Formula LGA 2011-v3 Chipset: Intel X99 Memory: 8x DDR4-3400+(OC)/ 2933(OC)/ 2800(OC)/ 2400(OC)/ 2133/ 1866 DIMM Slots,Quad-Channel, Non-ECC, Unbuffered,Max Capacity up to 128GB; Supports DDR4 ECC x8 (8 bit) RDIMM/x8 (8 bit) UDIMM with Intel Xeon Processors E5 Series in the LGA 2011-v3 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 SATA: 10x SATA3 Ports, Support RAID 0, 1, 5, 10 Ports: 11x USB 3.0 Ports (6 rear, 4 via headers, 1 Vertical Type A), 6x USB 2.0 Ports (2 rear, 4 via headers), 1x PS/2 Keyboard/Mouse Port,1x Optical S/PDIF Out, 2x RJ45 LAN Ports, Audio I/O Jacks