ASUS M3A AM2+ AMD 770 DDR2-1066 ATX Motherboard Box Contents - ASUS M3A Desktop Board, UltraDMA 133/100/66 cable, FDD cable, Serial ATA cables, Serial ATA power cables, Q-Shield, User's manual, 2 in 1 Q-connector CPU - AMD Socket AM2+ Phenom FX/X4/X2 / Athlon X2 / Sempron; AMD Socket AM2 Athlon 64 X2/FX/64 / Sempron Chipset - AMD 770 Chipset / SB600 System Bus - Up to 5200 MT/s; HyperTransport 3.0 interface for AM2+ CPU 2000 / 1600 MT/s for AM2 CPU Memory - 4 x DIMM, max. 8GB, DDR2 1066 / 800 / 667 / 533, ECC and non-ECC, un-buffered memory, Dual channel memory architecture