Specifications Mfr Part Number: X8STI-LN4-O CPU: Socket 1366 Support Intel Core i7-985/ i7-975/ i7-965 Extreme Edition; Core i7/ Xeon 5600/ 5500/ 3600/ 3500 series Processor; QPI up to 6.4 GT/s Chipset: Intel X58 Express chipset & ICH10R Memory: 6x 240pin DDR3-1333/1066/800 DIMMs, Tripple Channel, ECC/Non-ECC, Un-Buffered Memory, Supports upto 24 GB Slots: 1x PCI-Express 2.0 x16 Slot; 1x PCI-Express x8 Slot; 1x 32-bit PCI Slot SATA: 6x SATA2 Ports, Support RAID 0, 1, 5, 10 Video: Matrox G200eW Graphic Controller w/ 8MB DDR2 VRAM LAN: 4x Intel 82574L Gigabit Ethernet Controller Ports: 8x USB 2.0 Ports (2 by rear, 4 by headers, 2 on-board); 2x PS/2 Ports; 2x Serial Ports (1 rear, 1 by header); 1x VGA Port; 4x RJ45 LAN Ports Form Factor: ATX, 12 x 9.6 inch/ 30.5 x 24.4 cm Package: Retail RoHS Compliant