Mainboard, MSI, AMD B550, SAM4, MicroATX, Memory DDR4, Memory slots 4, 2xPCI-Express 3.0 1x, 1xPCI-Express 4.0 16x, 2xM.2, 1x15pin D-sub, 1xHDMI, 1xDisplayPort, 2xAudio-In, 1xAudio-Out, 2xUSB 2.0, 4xUSB 3.2, 1xPS/2, 1xRJ45, B550MPRO-VDH