Intel C621 , S3647 , SSI EEB , 7xPCI-Express 3.0 16x , 4xU.2 , 1xM.2 , DDR4 , 2933/2667/2400 MHz , Memory slots 12 , 2xUSB 2.0 , 5xUSB 3.1 , 1xUSB type C , 1xPS/2 , 1xOptical S/PDIF , 2xRJ45 , 5xAudio port , USB 2.0 , USB 3.1 , SATA 3.0 , Audio , LAN , RAID SATA 0, 1, 5, 10