GIGABYTE B550M K Motherboard - AMD Ryzen 5000 CPUs, up to 4733MHz DDR4, 1xPCIe 4.0 + 1xPCIe 3.0 M.2, 1GbE LAN, USB 3.2 Gen 1. Processor manufacturer: AMD, Processor socket: Socket AM4, Compatible processor series: AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series. Supported memory types: DDR4-SDRAM, Maximum internal memory: 128 GB, Memory slots type: DIMM. Supported storage drive interfaces: M.2, SATA, Supported storage drive types: HDD & SSD, RAID levels: 0, 1, 10. Maximum resolution: 5120 x 2880 pixels. Ethernet interface type: Gigabit Ethernet, LAN controller: Realtek RTL8111H