ASUS Prime B550M-K B550 MATX Motherboard For AMD Ryzen 3rd Gen CPU,AM4, B550, 2XM.2, 4XDDR4 Dimm, Back I/O: 6XUSB, HDMI, DVI, VGA, PS2, Lan, HD Audio, Interbal I/O: 2XUSB 2.0, 1XUSB 3.2