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. 2x PCI-E 3.0 x16 (FHHL) - AOC support 4. Intel X540 Dual port 10GBase-T 5. 4x 3.5" Hot-swap SAS/SATA HDD Bays for Customizable Storage SAS 3.0 (12Gbps) support