AMD Socket AM2 Athlon 64 X2 / Athlon 64 FX / Athlon 64 / Sempron. NVIDIA nForce 570 SLI MCP Memory : 4 x 240-pin DIMM Dual Channel DDR2 800/667/533 ECC and Non-ECC, un-buffered memory, 2 x PCI-E x16 (x8 speed in SLI mode), 2 x PCI-E x1, and 3 x PCI 2.2, 1 x Ultra DMA 133/100/66/33, 7 x SATA 3.0Gb/s and1 external SATA 3.0Gb/s, Dual Gigabit LAN, ATX