Sockel: 2x Socket 1207 / Quad-Core/Dual-Core AMD Opteron™ 2000 series / HyperTransport™ Technology 1.0, 1GHz / 2x1M L2 cache (Dual-Core) / 512KB L2 cache/Per core, 2MB L3 (Quad-Core) Core Logic: nVIDIA nForce Professional 2200 Form Factor: SSI EEB 3.61 Footprint Compliant, 12" x 13" Busclock MHz FSB: k.A. Total Slots: 1Slot 6: 1 * PCI-E x16 (x8 link) / Additional Slot 1: 1* SO-DIMM socket for optional ASMB3-SOL Speicher: 0xSD-RAM * 16x DDR2 667/533 ECC Reg* 0xRAMBUS / Memory standard max.: 64GB Features: VGA-ja (XGI® Z9s VGA Controller / 32MB DDR2 VRAM) * Audio-n * ATA-133-1x * S-ATA-4x * 4 x SAS* Raid-ja (SATA/SAS) * GLAN-2x * IEEE1394-n * USB-2.0 - 2x