NVIDIA SLI Ready: - True 3 x16 graphics
Quad SLI technology support with two dual-GPU GeForce 9800 GX2 graphics cards
3-way SLI technology support with three NVIDIA GeForce 8800 Ultra or GTX graphics cards
SLI technology support with two identical SLI Ready graphics cards.
Expansion Slots:- PCI Express 2.0 support
62 lanes, 12 links: 3 x16* or 4 x8, 1 x16, 1 x8, 6 x1 *2 x16 are PCI Express Gen 2.0, 1 x16 is PCI Express Gen 1.0
Up to 5 PCI Slots.
CPU: Intel Socket LGA775
Full support for Intel Penryn (Yorkfield & Wolfdale), Core 2 Extreme, Core 2 Quad, Core 2 Duo, Intel Pentium Family.
Memory Dual channel memory architecture
DDR3 2000 (EPP2.0)