PCI-E standard PCI-E 3.0 PCI-E slot two × PCI-E x16 graphics card slot, 3 × PCI-E X1 slot Storage interface one × M. 2 interface, 6 × SATA III interface I / O interface USB interface six × Usb 3.1 interface (2 built-in + 4 backplane), 6 × USB 2.0 interface (4 built-in + 2 backplane) Video interface one × VGA interface, 1 × DVI interface Power interface One 8-pin, one 24 pin power interface Other interfaces one × RJ45 network interface, 3 × Audio interface, 1 × PS / 2 keyboard mouse universal interface