Biostar K8M800-M7A DDR400 AGP Socket 754 mATX Socket 754 Supports AMD Athlon 64/Sempron Processors Hyper Transport Technology up to 1.6G Supports AMD Cool'nQuiet Technology Chipset VIA K8M800 / VT8237R Specifications: # MEMORY Support DDR 333/400 MHz # 2 x DDR DIMM Memory Slot # Max. Supports up to 2GB Memory # EXPANSION SLOT 1 x CNR Slots # 1 x AGP 8X Slots # 3 x PCI Slots # LAN Realtek RTL8201BL - 10/100 PHY # INTEGRATED VIDEO VIA S3 UniChrome, On Board Graphic Max. Memory Share Up to 64MB # CODEC Realtek ALC655 6-Channel AC97 Audio # REAR I/O 1 x PS/2 Mouse # 1 x PS/2 Keyboard # 2 x USB 2.0 Port # 1 x COM Port # 1 x Printer Port # 1 x VGA Port # 1 x RJ-45 Port # 3 x Audio Connector # INTERNAL I/O 2 x USB 2.0 Header # 2 x SATA Connector # 2 x IDE Connector # 1 x Floppy Connector # 1 x IrDA Header # 1 x Front Audio Header # 1 x CD-IN Header # 1 x S/PDIF-OUT Header # 1 x CPU FAN Header # 1 x System FAN Header # 1 x Chassis Open Header # RAID Support RAID: 0,1, 0+1 # DIMENSION Micro ATX Form Factor Dimension: 18.99 cm x 24.38 cm ( W x L ) # OS SUPPORT Support Windows 2000 / XP / XP 64 # ACCESSORIES 1 x IDE Cable # 1 x FDD Cable(Optional) # 1 x SATA Cable(Optional) # 1 x I/O Shield # 1 x CD Driver