Free Shipping! ASUS ATX Form Factor, AMD B550 Chipset, AM4 Socket, 4 x Dual-Channel DDR4-5100 (OC), 6 x SATA III, 2 x M.2, 1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16, 3 x PCIe 3.0 x1, 8-Channel ROG SupremeFX S1220A Codec, Supports 2-Way AMD CrossFireX