Key Features 1. Dual socket R3 (LGA 2011) supports Intel� Xeon� processor E5-2600 v3 family; QPI up to 9.6GT /s 2. Up to 1TB ECC, up to DDR4 2133MHz; 16x DIMM slots 3. 4x PCI-E 3.0 x16 slots (3x GPU/MIC cards optional), 1x PCI-E 3.0 x8 LP slot 4. Intel X540 Dual port 10GBase-T 5. 4x Hot-swap 2.5″ SATA3 Drive Bays 6. 1600W Redundant Power Supplies Platinum Level (94%+) 7. 10x Counter rotating fans w/ optimal fan speed control 8. Smart server management tools