1. Intel® Xeon® processor E5-2600 family; QPI up to 8GT/s2. Up to 512GB DDR3 1600MHz ECC Registered DIMM; 16x DIMM sockets3. Expansion slots: 3 (x16) PCI-E 3.0, 2 (x8) PCI-E 3.0 & 1 (x4) PCI-E 3.04. Intel® i350 Dual port GbE Controller5. 8x SATA2 and 2x SATA3 ports6. 4x 3.5" SAS/SATA HDD bays, 90° rotating hard drive cage, 4x 2.5" internal HDD/SSD bays (opt.)7. 900W High Efficiency Power Supply 80PLUS, Gold Level Certified