1---Dual AMD Opteron 200 Series Processors. 2---Up to 32GB DDR 200 SDRAM (or) Up to 16GB DDR 333 SDRAM (or) Up to 16GB DDR 400 SDRAM. 3---1 x 64-bit 100MHz Full-height, Full-length PCI-X Expansion Slot. 4---1 x Broadcom 5704 Dual Port Gigabit Ethernet Controller. 5---Zero Channel RAID Support. 6---3 x 1 Ultra320 SCSI Hot-swap Drive Bays. 7---420W Power Supply