Dual M.2, SATA 6Gb/s, USB 3.2 Gen 1, Realtek GbE LAN, and PCIe 4.0 are features of the GIGABYTE B550M-K AM4 AMD B550 Micro-ATX Motherboard—B550M K Two PCIe 4.0*/3.0 M.2 NVMe connectors GIGABYTE motherboards enable users to experience NVMe mode or SATA mode connectivity for M.2 SSD devices thanks to their onboard PCIe 3.0 x2 M.2 and NVMe PCIe 4.0*/3.0 x4 connectors. The dual M.2 connector design provides a data transfer speed of up to 64 Gb/s.