ASUS P5E3 Deluxe WiFi-APN Motherboard System Board for ATX PC Intel Socket 775 4 x DIMM, Max. 8 GB, DDR3 1800/1600/1333/1066/800 Non-ECC,Un-buffered Memory - Dual Channel memory architecture Front Side Bus 1600/1333/1066/800 MHz Expansion Slots 3 x PCIe x16 (blue @PCIe2.0 x16 mode, black @PCIe x4 or x1 mode) supports CrossFire Technology; 1 x PCIe x1 and 2 x PCI Storage Southbridge - 6 xSATA 3 Gb/s ports Support RAID 0,1,5,10 Micron JMB363 PATA and SATA controller; 1 xUltraDMA 133/100/66 for up to 2 PATA devices; 2x External SATA 3.0 Gb/s port (SATA On-the-Go); Support RAID 0,1+0,JBOD