AMD B550 , SAM4 , Micro-ATX , DDR4 , 4400/4000/3800/3600/3200/2933/2666/2400/2133 MHz , 2xPCI-Express 3.0 1x , 1xPCI-Express 3.0 16x , 1xM.2 , 1x15pin D-sub , 1xHDMI , 1xAudio-In , 1xAudio-Out , 1xMicrophone , 2xUSB 2.0 , 4xUSB 3.2 , 2xPS/2 , 1xRJ45 , SATA , USB 2.0 , USB 3.2 , SATA 3.0 , Video Depending on CPU , Audio Realtek ALC897 , LAN Gigabit , RAID SATA 0, 1, 10 , TPM Header