S2912G2NR-E - Dual LGA 1207 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 (NFP 3600); - (8) 240-pin DDR2 DIMM slots support up to 64GB registered DDR2 800/667/533/400 w/ ECC memory; - (1) PCI-E x16 slot; - (1) PCI-E x16 slot (w/ x8 link); - (1) HTX slot; - (4) SAS ports w/ RAID 0, 1, 1E support; - (6) SATA-II ports w/ RAID 0, 1, 0+1, 5 support; - (2) GbE LAN; - EATX (12" x 13") form factor.