Asus Computer ATX MBD NFORCE-2 SA 1394-6PCI 2 ETH AUD SATA RAID (A7N8X/DELUX D) Socket A for AMDR Athlon XP/ Athlon / Duron 600MHz ~ 3000+ Maximum of 3 GB unbuffered PC3200/PC2700/PC2100/PC1600 non-ECC DDR RAM Memory 1 x AGP Pro/8X (1.5V only); 5 x PCI expansion slots Back Panel I/O Ports: 1 x Parallel, 1 x Serial, 1 x PS/2 Keyboard, 1 x PS/2 Mouse, 1 x Audio I/O, 4 x USB 2.0, 1 x S/PDIF out + 1 x Surround L/R audio jack + 1 x CNTR/LFE, audio jack, 2 X RJ45 ATX Form Factor: 12" x 9.6" (30.5cm x 24.5cm)