Key Features 4 Hot-plug System Nodes in 4U; Each node supports: 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 DDR4 2133MHz;16x DIMM sockets 3. Expansion slots: 1 PCI-E 3.0 x16 (LP),1 PCI-E 3.0 x8 (Micro Low Profile)4. I/O ports: 2 10GBase-T, 1 Built-in video,1 COM/Serial port, 2 USB 3.0 ports 5. Built-in Server management tool (IPMI 2.0, KVM/media over LAN) with dedicated LAN port 6. 6+2 3.5" Hot-swap SATA3 HDD Bays 7. 2x 80mm 11k RPM middle fans 8. 1280W Redundant Power Supplies Platinum Level (95%)