Supermicro Intel X58 DDR3 800 LGA 1156 Motherboards X8SIE-LN4-O CPU: Socket LGA 1156 Support Intel Xeon X3400/ L3400 series Processor Chipset: Intel 3420 chipset Memory: 6x 240pin DDR3-1333/1066/800 DIMMs, Supports upto 32 GB ECC/REG DIMMs or upto 16 GB ECC Unbuffered DIMMs Slots: 1x PCI-Express 2.0 x16 Slot; 1x PCI-Express x4 Slot (run at x8); 1x 32-bit PCI Slot SATA: 6x SATA2 Ports, Support RAID 0, 1, 5, 10 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 LAN: 4x Intel 82574L Gigabit Ethernet Controller