AMD Promontory X370 Supports AMD AM4 Socket Ryzen Series CPUs (Summit Ridge & Raven Ridge) Supports DDR4 3200+(OC) 2 PCIe 3.0 x16, 1 PCIe 2.0 x16, 2 PCIe 2.0 x1 NVIDIA Quad SLI, AMD Quad CrossFireX 7.1 CH HD Audio (Realtek ALC1220 Audio Codec), Supports Purity Sound 4 & DTS Connect 10 SATA3, 1 Ultra M.2 (PCIe Gen3 x4 & SATA3), 1 M.2 (PCIe Gen2 x4) 2 USB 3.1 Gen2 (1 Type-A, 1 Type-C), 10 USB 3.1 Gen1 (4 Front, 6 Rear) Intel Gigabit LAN Intel 802.11ac WiFi + BT 4.2