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 sockets 3. Intel X540 Dual port 10GBase-T 4. 4x PCI-E 3.0 x16 slots (GPU/MIC, opt.), 1x PCI-E 3.0 x8 (in x16) low-profile slot 5. 10x Hot-swap 2.5" SATA Drive Bays