Four hot-pluggable systems (nodes) in a 2U form factor. Each node supports the following: - Dual AMD Opteron™ 6000 series (6300 ready) processors (Socket G34) 16/12/8/4-Core ready; HT3.0 Link support - Up to 512GB DDR3 1600MHz ECC Registered DIMM; 16x DIMM sockets - 1x Low-profile PCI-E 2.0 in x16 slot (For add-on card up to 5.9"in length) - Dual-port GbE LAN Controller, 4xUSB 2.0 ports, 1x dedicated LAN for system management (IPMI 2.0) - 6x Hot-swap SATA Drive Bays - Mellanox ConnectX-2 QDR Infiniband 40Gbps Controller w/ QSFP connector - 1400W High-efficiency Redundant Power Supplies; 80PLUS Gold Certified