ASUS AMD B550M-K RYZEN AM4 MICRO-ATX MOTHERBOARD 4X DDR4 1X D-SUB 1X DVI-D 1X HDMI2.1 1X PCIE 4.0X16 1X PCIE 3.0X16 2X PCIE 3.0X1 2X M.2 4X SATA 6GBPS 1X REALTEK 1GB ETHERNET 8X USB 3.2 4X USB 2.0