ASUS PRIME B550M-A WIFI II AM4 Micro-ATX Motherboard – Memory: 4x DIMM Slots (DDR4) – Expansion Slots: 1x PCIe 4 x16, 1x PCIe 3.0 x16, 2x PCIe 3.0 x1 – Storage Support: 2x M.2, 4x SATA 6Gb/s Connectors – Network: 2×2 WiFi 6, Bluetooth 5.2, Realtek 1GB Ethernet – Rear USB Ports: 2x USB 3.2 Gen 2, 4x USB 3.2 Gen 1 Realtek 7.1 Surround Sound High Definition Audio CODEC – PRIME B550M-A WIFI II – 3 Years Limited Warranty