Mainboard, ASROCK, AMD B550, SAM4, ATX, Memory DDR4, Memory slots 4, 3xPCI-Express 16x, 1xPCI-Express 3.0 1x, 2xM.2, 1xHDMI, 2xUSB 2.0, 8xUSB 3.2, 1xPS/2, 1xOptical S/PDIF, 1xRJ45, 5xAudio port, B550PGRIPTIDE