Specification Mfr Part Number: 7220-010 (K8N DIAMOND PLUS) CPU: Socket 939 supports AMD Opteron, Athlon 64 X2 Dual-Core / Athlon 64 FX / Athlon 64 processor; Supports Upto 4800+ or higher CPU; Supports AMD Cool'n'Quiet technology; FSB 1GHz HT Speed Chipset: nVidia GeForce nForce4 SLI x16 SPP(C51D) & nForce4 SLI x16 MCP(nForce4 SLI) Memory: 4x 184-pin DDR DIMMs supports dual channel DDR 266/333/400; Max upto upto 4GB Slots: 2x PCI-E x16 slot; 2x PCI-E x1 slots; 1x PCI-E x4 slot interface, 2x 32-bit v2.3 Master PCI bus slots IDE/SATA: 2x Ultra DMA133/100/66; 4x SATA II ports supports RAID 0 or 1, 0+1, 5, JBOD; 2x SATA II ports supports RAID 0 or 1 and multiple RAID groups (Silicon Image) Audio: Creative sound Blaster Audigy hardware audio (7.1 Channel output supported) LAN: PCI LAN supports 10/100/1000 Fast Ethernet by Marvell 88E1115 PHY; PCI Express LAN supports 10/100/1000 Fast Ethernet by Marvell 88E8053 Ports: 1x Parallel port; 1x Serial port (COM 1); 2x PS/2 ports; 1x Coaxial SPDIF out; 1x IEEE1394 Port + 2x IEEE1394 header; 1x 6 in 1 audio jack (S/SPDIF out); 4x USB 2.0 ports + 3x USB 2.0 header; 2x RJ45 LAN jack Form Factor: ATX, 30.4 x 24.4 cm