ASRock Core 2 Duo/DDR&DDR2/PCI-E&AGP/A&L/ATX Motherboard 4COREDUAL-SATA2 R2.0 CPU: Socket 775 Support Intel Core 2 Extreme/Core 2 Duo/Pentium XE/Pentium D/Pentium Dual Core/Pentium 4/Celeron/Celeron D Processor Memory: 2x 240pin DDR2-667/533 DIMMs, 2x 184pin DDR-400/333/266 DIMMs, Dual Channel, Max Capacity 2GB Slots: 1x PCI-Express Graphics Slot; 1x AGP 8X Slot; 4x PCI Slots IDE/SATA: 2x ATA-133 Channels; 2x SATA2 Ports, Support RAID 0, RAID 1, and JBOD Audio: ALC888 7.1-Channel Windows Vista Premium Level HD Audio CODEC LAN: VIA PHY VT6103 10/100 Ethernet Controller Ports: 8x USB 2.0 Ports (4 rear, 4 by headers); 2x PS/2 Ports; 1x Serial Port; 1x Parallel Port; 1x RJ45 LAN Port; Audio I/O Jack Power Connector: 1x 20pin Main Power, 1x 4pin CPU Power