CPU Type: Intel Xeon 3400 series Number of DDR3 Slots: 6 x 240pin Registered: Yes PCI Express x8: 1 x PCI Express 2.0 x8 slot (x16 mechanical) 1 x PCI Express 2.0 x8 slot (x8 mechanical) PCI Express x4: 1 x PCI Express x4 slot (x8 mechanical) PCI Slots: 1 SATA: 6 x SATA 3.0Gb/s SATA RAID: 0/1/5/10