MSI MAG B550 TOMAHAWK AM4 ATX Motherboard – Memory Support: 4x DDR4 DIMM Slots (128GB, 4866 MHz O.C) – Graphics Interface: 1x PCIe 4.0 x16, 1x PCIe 3.0 x16 – Supports 2-Way AMD CrossFire – Expansion Slots: 2x PCIe 3.0 x1 – Storage Support: 2x M.2 Slots & 6x SATA 6Gb/s Connectors – Total USB Ports: 2x USB 3.2 Gen 2 (1x USB-C), 5x USB 3.1 Gen 1 (1x USB-C) & 6x USB 2.0 – Network: Realtek® RTL8125B 2.5G LA N& Realtek® RTL8111H Gigabit LAN – Realtek® ALC1200 Codec – 3 Years Limited Warranty