Supermicro X7DVL-E Motherboard -  Dual Intel 64-BIT Xeon Support (667/1066/1333MHZ Fsb), 16GB DDR2 667 & 5 CPU: Dual 771pin LGA Sockets support Intel 64-bit Dual-Core Xeon Processor 5000 sequence upto 3.73GHz; FSB 1333/1066/667MHz Chipset: Intel 5000V (Blackford VS) & MCH + PXH + ESB2 Memory: 6x 240pin DDR2-667/533 DIMMs, Dual branch memory bus, ECC/FB-DIMM, Max capacity 16GB Slots: 1x PCI-Express x8 slot; 1x PCI-Express x4 (run on x8) slot; 2x 64-bit 133/100MHz PCI-X (3.3V) slots; 2x 32-bit 33MHz PCI (3.3V) slots IDE/SATA: 1x ATA-100 channel; 6x SATA2 ports support RAID 0, 1, 5, 10 Ports: 2x USB 2.0 ports + 2x headers; 2x PS/2 ports; 1x Fast UART 16550 serial port + header; 1x ECP/EEP parallel port; 2x RJ45 LAN ports; 1x VGA port