ASRock 970A-G/3.1 Socket AM3+/ AMD 970/ DDR3/ Quad CrossFireX/ SATA3&USB3.1/ M.2/ A&GbE/ ATX Motherboard CPU: Socket AM3+/AM3, Chipset: North Bridge AMD 970 & South Bridge AMD SB950.Supports Socket AM3 processors: AMD Phenom II X6 / X4 / X3 / X2 (except 920 / 940) / Athlon II X4 / X3 / X2 / Sempron processors Memory: 4x DDR3-2400+(OC)/ 2100(OC)/ 1866(OC)/ 1800(OC)/ 1600(OC)/ 1333/ 1066 DIMM Slots, Dual Channel, Non-ECC, Unbuffered, Max Capacity of 64GB Slots: 2x PCI-Express 2.0 x16 Slots (one runs x4), 2x PCI-Express 2.0 x1 Slots, 1x PCI Slot SATA: 6x SATA3 Ports, M.2: 1x M.2 Port, Support M.2 PCI-Express 2.0 x4 Ports: 2x USB 3.1 Ports (1 Type-A, 1 Type-C), 4x USB 3.0 Ports (2 rear, 2 via header), 8x USB 2.0 Ports (4 rear, 4 via headers), 1x PS/2 MousePort, 1x PS/2 Keyboard Port, 1x Optical S/PDIF Out, 1x RJ45 LAN Port, Audio I/O Jacks Form Factor: ATX