GIGABYTE GA-970A-DS3P (rev. 2.0) AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard Number of Memory Slots: 4×240pin Memory Standard: DDR3 2000(O.C.)/ 1866/ 1600/ 1333/ 1066 PCI Express 2.0 x16: 1 x PCI Express x16 slot, running at x16 (PCIEX16) * For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot. 1 x PCI Express x16 slot, running at x4 (PCIEX4) (All PCI Express slots conform to PCI Express 2.0 standard.) Audio Chipset: Realtek ALC887 PCI Express x1: 3 x PCI Express x1 slots (All PCI Express slots conform to PCI Express 2.0 standard.) Audio Channels: 2/4/5.1/7.1-channel Max LAN Speed: 10/100/1000Mbps South Bridge: AMD SB950