Asrock X99X Killer, Intel 2011-3 Socket Fatal1ty X99 Chipset Gaming ATX Motherboard, XXL Aluminum Alloy Heatsink, Supports Intel Core i7 and Xeon 18-Core Processors Family for the LGA 2011-3 Socket, Digi Power, 12 Power Phase design, Supports Quad Channel DDR4 3000 (OC) memory with max. capacity up to 128GB, 3 PCIe 3.0 x16, 2 PCIe 2.0 x1, Supports AMD 3-Way CrossFireX and NVIDIA 3-Way SLI, 7.1 CH HD Audio, Intel Gigabit LAN Qualcomm Atheros Killer LAN, 10 SATA3, 1 eSATA, 1 Ultra M.2, 10 USB 3.0, 7 USB 2.0, 1 COM Port Header, 1 Thunderbolt AIC Connector