AMD B550 , SAM4 , ATX , DDR4 , 5100/4866/4600/4400/4266/4133/4000/3866/3600/3466/3200/3000/2800/2666/2400/2133 MHz , Memory slots 4 , 3xPCI-Express 3.0 1x , 1xPCI-Express 3.0 4x , 1xPCI-Express 4.0 16x , 2xM.2 , 1xHDMI , 1xDisplayPort , 2xAudio-In , 3xAudio-Out , 2xUSB 2.0 , 5xUSB 3.2 , 1xUSB-C , 1xOptical S/PDIF , 1xRJ45 , 2xRF-Out , SATA , Bluetooth , WiFi , Video Depending on CPU , Audio , LAN 2.5 Gigabit , RAID SATA 0, 1, 10