Asus Prime B550M-A WiFi, AMD B550 Chipset, Micro-ATX Form Factor, Socket AM4, 4x DDR4 DIMM Slots, Supports up to 128GB, Supports up to DDR4-4600(OC), 1x PCIe 4.0 x16, 2x PCIe 3.0 x1 Slots, 4x SATA 6Gbps Ports, 1x M.2 PCIe 4.0 x4 M-Key Slot, 1x M.2 PCIe 3.0 x4 M-Key Slot, 2x USB 3.2 Gen2 Type-A, 4x USB 3.2 Gen1 Type-A, 1x HDMI, 1x D-Sub, 1x DVI-D, Precise Digital Control, Intel WiFi 6 (AX200) Module, Premium Japanese Audio Capacitors, 1x Realtek RTL8111H Gigabit LAN Port, Realtek ALC887 7.1 HD Audio CODEC, 3 Year Warranty