ASRock Micro ATX DDR3 1066 Motherboards 970M PRO3 Socket AM3+/AM3 Chipset: North Bridge AMD 970 & South Bridge AMD SB950 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 run x4), 1x PCI-Express 2.0 x1 Slots, 1x PCI Slot Storage: 6x SATA3 Ports, Support RAID 0, 1, 5, 10 Form Factor: MicroATX