Asus P5Q3 LGA775 Intel P45 DDR3-1800 ATX Motherboard Box Contents - Asus P5Q3 Green Motherboard, 1 x UltraDMA 133/100/66 cable, 4 x Serial ATA cables, 1 x 2-port Serial ATA power cable, Q-connector, ASUS Q-Shield, User's manual, Support Disc Intel Socket 775 Core 2 Quad/Core 2 Extreme/Core 2 Duo/Pentium D/Celeron dual-core /Celeron Processors Compatible with Intel 05B/05A/06 processors, Supports Intel 45nm multi-Core CPU Intel P45 4 DIMM, Max. 16 GB, DDR3 1800(O.C.)/1600/1333/1066 Non-ECC, Un-buffered Memory, Dual Channel memory architecture 2 PCIe 2.0 x16, support ATI CrossFireX technology, 3 PCIe x1, 2 PCI