B2935G28V4H - Two LGA 1207-pin sockets support up to (2) AMD 45nm Quad-Core OpteronTM 2300 series processors; - Support AMD Dual Dynamic Power Management (DDPM) feature; - nVIDIA nForce® Professional 3600 (NFP3600); - (16) 240-pin DDR2 DIMM slots support up to 64GB registered DDR2 667/533/400 w/ ECC memory (per node); - (1) Low-Profile PCI-E x8 slot (via M2088-R) (per node); - (2) hot-swap 3.5" SATA-II HDDs w/ RAID 0, 1, 1E support (per node); - (4) GbE LAN (per node); - (1) InfiniBand 4X port w/ 20Gb/s link (B2935G28V4HI) (per node); - (1) EPS1U 1,000W PSU w/ PFC, 80-PLUS; - Optional TYAN® M3295-2/ M3296 SMDC for IPMI v2.0 support.